Showing posts with label Threatened. Show all posts
Showing posts with label Threatened. Show all posts

Monday, April 11, 2011

Zorse


True Wild Life | Zorse | The zorse is a cross between a zebra stallion and a domestic mare. It is also possible to use a zebra mare and a domestic stallion, but owners of valuable zebra mares don't want to waste a year of their breeding life producing a hybrid when they could be producing a zebra foal instead. The crosses were originally done in England and Africa to try to produce a domestic horselike animal that was resistant to diseases spread by the tse tse fly in Africa. Zebras have natural resistance, where domestic donkeys and horses do not. The experimental crosses were actually becoming popular until early in the 20th century when the auto displaced the horse and mule. At that point cross-breeding was largely abandoned. A revival of interest came in the early 1990s, with just about every breed of domestic horse imaginable being tried.


A zorse generally inherits the striping pattern and some of the conformation of the zebra sire with the size, colouration, and temperament of the domestic mare. Coarse bad tempered pony mares produce coarse bad tempered zonies. Mares of quality, especially Quarter horses and American Paint horses, produce some very beautiful zorses that have a good working attitude. If the mare has a pattern, such as pinto spotting or Appy spots, the zorse often will also. You only see the striping pattern on the pigmented areas, never on the white areas. Breeders avoid using gray mares because the zorse can inherit the graying gene and lose all his stripes in a few years! You can still see the stripes on the skin.


Like mules, zorses are born anatomically normal males or females. They exhibit normal breeding behaviour. But like mules they are sterile. Males should be gelded as early as a few months old to prevent dangerous studdy behaviour. A breeder in KY keeps two zorse mares in the pasture with his Paint stallion to keep him company. He has bred them both hundreds of times over the years but no offspring have ever resulted.


Zorses tend to be very hardy and live into their 30s with good care. Their temperaments are generally similar to those of their mothers, but like the zebra they do have a strong flight response. Because of this it's best for a first time hybrid owner to get a zedonk instead. When a zedonk startles he freezes up like a donkey rather than bolt blindly like a horse or zebra.

Zebra Shark


True Wild Life | Zebra Shark | The zebra shark is a medium-sized species of shark, that is found in the warmer coastal waters and around tropical coral reefs. Zebra sharks are most commonly found in the Indian and South Pacific oceans. Zebra sharks can grow to nearly 3 meters in length and can get to be 30 years old in the wild. Zebra sharks that are kept in captivity generally do not exceed 15 years of age. Zebra sharks can be identified by the yellow spots that are present on the back of the zebra shark.


Zebra sharks have a long, flattened body which helps them to remain unnoticed on the seabed. The zebra shark also has a long tail which allows it to be more agile in the water. Zebra sharks move their tails from side to side when they swim, in an eel-like manner.


Zebra sharks are omnivorous animals but tend to have a more meat-based diet. Zebra sharks feed on small fish, crabs, shrimp, snails and other small invertebrates along with squid and sea snakes which they forage for in the coral reefs.


Due to their relatively large size, zebra sharks have few natural predators as they are fairly dominant predators in their environment. Larger species of shark such as tiger sharks and bull sharks are the main predators of the zebra shark, along with humans who hunt them for their meat and fins. The female zebra shark lays an average of ten large eggs which hatch after an incubation period of around 5 months. The baby zebra sharks are nearly half a meter long when they first hatch.

Zebra


True Wild Life | Zebra | The zebra is best known for the black and white striping pattern unique to each of the 3 species of zebra . Within a species, the pattern of the stripes is unique to each individual zebra, like with a human's fingerprint. There is some evidence that zebras recognize herdmates by their patterns. The plains zebra grows to around 1.5m high and about 2 m long. The Grevy can be much taller, some up to 15 hh. The average zebra weighs around 300kg, which is a similar weight to a horse.


There are 3 species of zebra, all three zebra species are found in Africa. The mountain zebra is sadly an endangered species and there are only a few left in the wild. The Hartman subspecies has a distinct dewlap on the throat. The striping pattern of a mountain zebra is similar to that of a plains zebra, but it has a unique gridiron pattern on the top of the rump. You would think that the zebra's stripes would make the zebra vulnerable to predators as it would be difficult to hide itself. If the zebra has to run away, the zebra's stripes actually help it to blend in with the rest of the fleeing herd, visually confusing predators who are trying to zero in on one specific animal.


One extinct subspecies of the Plains zebra, which was once found in great numbers in South Africa's Cape Province was the quagga. The quagga was distinguished from other zebras by having the usual zebra stripes on the front part of the body only. The stripes on the quagga gradually fade so its rear was only chestnut. The only quagga to have ever been photographed alive was a mare at the Zoological Society of London's Zoo in Regent's Park in 1870. She was 28 at the time and died a year or two later. Only after she died did zoologists realize she was the very last of her kind. The zebra is a common target for large carnivorous animals that are found in the zebra's habitat. The predators of the zebra include the lion, hyena and the crocodile along with other large mammals such as cheetahs and leopards that tend to hunt the smaller and more vulnerable members of the zebra herd. The zebra's defenses include its very powerful kick, which can break the jaw of a lion. It also has an explosive takeoff and can sprint at good speed for a short distance.


Zebras live together on the African plains in large herds often with or close to other herbivorous mammals such as antelope and wildebeest. Along with the wildebeest , the zebra takes part in the annual great migration following the rains across Africa. Herbivores do this in order to get the best grazing as the grass is at its best after the rain has passed over it. The female zebra usually gives birth to just one zebra foal after a 12 month gestation period. Female zebras have been known to give birth to zebra twins but it is a fairly fair occurrence. Zebra foals are able to stand and run about just hours after birth and remain close the mother zebra until they are big enough to look out for themselves.


It has been known for zebras to occasionally mate with donkeys and horses resulting in a zonkey foal. This is thought to happen extremely rarely in the wild and the zonkey is infertile meaning that it cannot produce offspring of its own. There has also been a documented case of a Grevy zebra mating with a Grant zebra in the wild, producing an interspecies zebra hybrid. The conformation is intermediate between the two. It has Grevy pinstripes arranged in a Grantlike pattern. Like other interspecies hybrids it is sterile.

Friday, April 8, 2011

Yak


True Wild Life | Yak | The yak is a herd animal found in the mountainous regions of central Asia. The yak tend to gather in herds from 10 yaks to 100 yaks, most of which are female. There are only a few male yaks per herd. Although there is a large domestic population of yak, there are only a few wild yak remaining . The yak is still used in many parts of central Asia, for pulling heavy farm machines and transporting large loads through the mountain passes.


The average male yak can grow to about 2meters tall, with the female yak being about 1/3 the size of the male yak. All yak have very long hair to keep them warm. The yak belongs to the same cow family as the Asian water buffalo, the African buffalo and the American bison. However, the yak is slightly more like the American bison in appearance as both the yak and the bison have long hair in order to withstand the colder climates, the bison of the North American winters and the yak of the mid-Asian mountains.


The yak breeds in the warmer months of September and after a gestation period of nine months the female yak gives birth to a single yak calf. A female yak will occasionally give birth to twins but it is very rare. Some female yak give birth to a calf almost every year but it depends on the environment in which the yak lives and the yak individual. Yak babies are completely independent by the time that they are a year old and they are fully grown when they are between 7 and 8 years old. The average lifespan of a yak is about 20 years in the wild and slightly longer when in captivity.


Like other species of cow, the yak is a herbivore and spends a great deal of time on grassy plains in the mountains grazing on grasses, herbs and wild flowers. In a similar way to other cow species the yak has more than one stomach which the yak uses to successfully get all of the nutrients out of the plants that it eats. The yak has firm, dense horns which the yak uses to break through snow in order to get the plants that are buried beneath it and the yak will also use it's horns in defence. They have long shaggy hairthat covers their bodies that keep them warm and dry.

Woolly Monkey


True Wild Life | Woolly Monkey | The woolly monkey is a medium to large sized primate, that inhabits the tropical forests of north-west South America. The woolly monkey is most well known for it's round-shaped head and dense fur that covers the body of the woolly monkey. Woolly monkeys are found throughout Colombia, Ecuador, Peru, Brazil and parts of Venezuela where they live an arboreal lifestyle. Woolly monkeys have long and very strong prehensile tails which allows them to balance and grip onto branches without having to give up the use of their hands.


There are four different species of woolly monkey found in the South American jungles today. These are the brown woolly monkey (also known as the common woolly monkey), the grey woolly monkey, the Columbian woolly monkey and the silvery woolly monkey. All four of the different woolly monkey species are found in the same regions of South America. The woolly monkey gets its name from its soft and thick, curled fur which ranges from brown to black to grey, depending on the species of woolly monkey. Woolly monkeys have relatively stocky bodies, with powerful shoulders and hips.


Like many other primate species, woolly monkeys live together in fairly large groups known as troops. The woolly monkey troops contain both male woolly monkeys and female woolly monkeys. The woolly monkey troop is also known to split up into smaller groups when it is time to forage for food. The woolly monkey is an omnivorous animal, meaning that it feeds on both plants and other animals. Fruit is the primary source of food for woolly monkeys, but they will also eat nuts, seeds, leaves, flowers, nectar, insects and even small rodents and reptiles.


Due to their relatively large size, woolly monkeys have few natural predators within their jungle environment. Large birds of prey such as eagles, are the main predators of the young woolly monkeys, and wildcats such as ocelot and jaguars are the main predators of the adult woolly monkeys. The human is also one of the main predators of the woolly monkey as they are hunted for their meat and fur. The alpha male woolly monkey will mate with the females in his troop. After a gestation period of between 7 and 8 months, the baby woolly monkey is born. Woolly monkeys tend to only have one baby at a time although twins have been known to occur. The baby woolly monkey clings to it's mothers underside, before climbing up onto her back when it is around a week old. The baby woolly monkey is independent and no longer needs it's mother when it is around 6 months old.


Due to deforestation and therefore habitat loss, the woolly monkey population numbers are drastically decreasing, with the woolly monkey now considered to be an animal species that is vulnerable to extinction.

Thursday, April 7, 2011

Wolverine


True Wild Life | Wolverine | The wolverine is a medium sized mammal that despite it's bear-like appearance (and it's name) is most closely related to the weasel. The wolverine is known to be strong and vicious and is said to have immense strength in comparison to it's size. The wolverine is found throughout Canada, Europe, parts of North America and the Arctic Circle where the wolverines inhabit mountainous regions and dense forests. Wolverines are also known to venture into more open areas such as plains and farmland when they are in search of food.


The wolverine generally eats mice, rats and other small mammals, birds and eggs during the summer months when these small animals are in abundance. During the bitter winter however, when snow covers the ground, the wolverine tends to hunt larger animals such as reindeer (caribou), sheep and moose. Despite the fact that the wolverine is known to be capable of hunting down and killing animals that are so much bigger than itself, the wolverine tends to prefer to scavenge the kills of other animals such as wolves and bears. The wolverine will let the larger predators hunt the prey down and the wolverine then chases the hunter away by showing its teeth and growling fiercely. Then the wolverine is left to eat the kill. The wolverine uses its large teeth and powerful jaws to crush large bones and eat meat that has been frozen in the unforgiving Arctic winter. 


The wolverine also has long, sharp, powerful claws that the wolverine uses to catch it's prey and to defend itself from predators and other wolverines. The wolverine also uses it's claws for climbing and digging. Like the skunk, the wolverine has a strong-smelling fluid called musk which the wolverine uses to warn others to stay away. Wolverines also have a thick coat of brown fur to protect them from the freezing cold temperatures. The wolverine has large feet help it move across the soft snow, with five sharp claws on each foot. Wolverines are highly territorial animals and they will fight other wolverines to defend their territory. Wolverines are not particularly fast movers (although they are known to reach speeds of more than 30mph when needed), so they do not chase or stalk their prey. However, wolverines are good climbers and often rest in trees, where the wolverines wait until the right moment to pounce on their prey from the trees or large rocks.


The female wolverine has one litter every two or three years. She digs a den with tunnels in a snowdrift that is near piles of rocks. After a gestation period of nearly 2 months, the female wolverine gives birth to a small litter of baby wolverines (known as kits), usually 2 or 3 kits are born. The mother wolverines nurses her wolverines kits until they are around 10 weeks old and are then big enough and strong enough to start learning to hunt for themselves. Wolverines usually live to between 8 and 13 years old although some wolverine individuals in captivity have been known to nearly reach the age of 20! The wolverine is considered to be a near threatened species as the wolverine numbers are declining due to hunting and habitat loss.

Wolf


True Wild Life | Wolf | The wolf is thought to be an ice age survivor, dating wolves around 300,000 years ago. The wolf is accepted to be the ancestor of the domestic dog as the wolf is thought to have selectively bred in order to breed appealing traits typical of puppies and to eliminate the not so appealing traits of adult wolves. The grey wolf is a highly adaptive animal found in all kinds of terrain. Wolves inhabit forests, deserts, mountains, tundras, grasslands and even urban areas with the wolf being a particularly dominant and ruthless predator within it's environment. They vary in color from pure white to pure black and every shade of brown and gray inbetween. At one time the wolf had the widest distribution of any mammal. The biggest wolves on earth live in Alaska and average 125-135 lb. One specimen was taken that weighed 200 lb. The smallest wolves live in Iran and average about 60 lb.


The wolf lives to be approximately 10 years old in the wild. Wolves live in packs that generally consist of the alpha male wolf, his mate the alpha female, and their offspring of various ages. Other wolves may also join, but it is the parents that are the leaders. The wolf has no real natural predators; their biggest threat is other wolf packs on adjacent territories. The wolf has been known to live up to 20 years old in captivity. Wolves are carnivorous animals and generally hunt large animals but wolves will also hunt smaller animals if they are need of their daily meal. Wolves hunt together in their packs and work together as a team in order to catch and kill a large animal such as moose and deer. Wolves are opportunists and will not waste their energy chasing a healthy deer 10 miles when an injured or sick one is available. The native Alaskan peoples call the wolf the "wild shepherd of the caribou".


Wolves have a layer of thick fur which is particularly needed for those wolves that inhabit areas of the Arctic circle where it can be extremely cold. It is during the winter months in these areas that calories are most critical . Larger animals such as elk and deer suffer greatly from the cold and lack of food to eat and it is during this time that the prey of the wolf is at its slowest and therefore is easier to catch. Wolves are considered to be an endangered species today as wolves have been widely exterminated from their former ranges by hunting, poisoning, and trapping to procure their fur and to protect livestock. Wolves have also been severely affected by habitat loss and have been pushed into smaller and smaller territories where the food source may not be plentiful enough to sustain a hungry wolf pack and where heavy inbreeding occurs.


Wolves tend to mate in late winter to early spring and the wolf cubs are born are born a couple of months later when the weather is warmer and prey is abundant. The wolf cubs then have the rest of the year to grow stronger in order to be able to survive their first cold winter. Wolf cubs stay with their mother in the wolf pack with the male wolf cubs often leaving to form a pack of their own. Wolves can interbreed freely with dogs, redwolves, coyotes, and jackals to produce fertile offspring. This is a case of incomplete speciation. There are physical, behavioral, and ecological differences between these species, but they are fully genetically compatible. None of the animals in this group can breed with foxes, which are too far separated genetically.

Sunday, April 3, 2011

Whale Shark


True Wild Life | Whale Shark | The whale shark is the largest species of fish with some adult whale sharks growing to nearly 50ft long! The whale shark is thought to have developed around 60 million years ago making the whale shark one of the oldest species on Earth today. The whale shark spends it's life swimming through the open oceans in search of fish and squid. Unlike many other species of shark, the whale shark is known to feed on large shoals of tiny fish rather than hunting bigger fish and sea mammals. This makes the whale shark a filter feeder similar to whales and smaller sea animals.


The whale shark inhabits the warm, tropical waters around the equator and despite often being found close to coastlines, the whale shark is also known to dive to depths of up to 700 meters (that over 2,000ft deep). In this part of the ocean, food is more scarce and the whale shark will therefore only venture to such depths if hunting in the shallower waters is not possible. The whale shark is the perfect example of a so-called friendly shark and to date have posed no significant threat to humans (mainly divers). The whale shark is most commonly spotted around the Gulf of Mexico and the Indonesian Islands where the whale sharks have been known to be almost playful towards humans.


Female whale sharks incubate their eggs inside them rather than outside. This means that whale sharks effectively give birth to live young. Inside the female whale shark are hundreds of eggs but only a few actually turn into baby whale sharks. The remaining eggs are thought to be there so that when the whale shark pups hatch, they have something to eat. The female whale shark gives birth to an average litter of 12 whale shark pups that are around 60 cm long.


Whale sharks grow quickly during their first few years and soon the whale shark pups are extremely big and therefore less likely to be hunted by marine predators such as other shark species and killer whales. Whale sharks tend to live for around 60 to 80 years but have been known be more than 100 years old.

Weasel


True Wild Life | Weasel | The weasel is a small, thin mammal. Weasels are found all around the world apart from the Arctic and Australia including it's surrounding islands. The weasel feeds mainly on small mammals and the weasel has a bad reputation amongst farmers who do not approve of the weasel stealing their poultry and their eggs. The weasel can burrow quickly into the ground, meaning the weasel can easily escape danger including farmers that want to catch them.


The weasel tends to grow to about 30cm long with a tail roughly the same length as the weasel's body. The weasel is generally a solitary animal but some species of weasel congregate together in groups for months on end. Weasels most typically come together to mate. The weasel belongs to the same animal family as and is closely related to other animals such as ferrets,stoats and polecats. All these animals have a similarly long-shaped body and pointed snout and are all found in similar environments.


Weasels are most commonly found in wooded areas but weasels are rarely found in really dense, thick forest. Weasels burrow and nest in hollow logs and under piles of rocks and weasels will often inhabit the nest of one of their prey rather than building a new one themselves. Weasels most commonly breed during the mid-summer months and give birth to their young in late spring the following year. The female gives birth to an average of 6 baby weasels, which are pink, blind and tiny and have very little fur. After a couple of weeks the fur of the baby weasels is much thicker and the baby weasels are able to eat solid food after about a month. By the time the baby weasels are two months old, they have taught by their mother weasel how to hunt their own food and soon become independent.


Weasels are prey to numerous larger animals such as foxes, cats, snakes and birds of prey. It is because they are so vulnerable to being eaten, that many weasels will not even live to be year old. The average lifespan of a wild weasel is thought to be around 3 years but weasels have been known to live for longer in captivity. Generally, weasels prey on small animals such as mice, birds and baby rabbits. The larger male weasels however have been known to prey on larger animals that are bigger than they are.

Water Dragon


True Wild Life | Water Dragon | The water dragon is a large species of lizard native to the forests and jungles of Asia and Australia. Water dragons are arboreal animals meaning that they spend most of their time in the trees, often close to a large body of water. There are two different species of water dragon, which are the Australian water dragon and the Asian water dragon. The Australian water dragon is the smaller of the two water dragon species and is found on the east coast of Australia. Australian water dragons have powerful legs and sharp claws which help them to climb trees more effectively.


The Asian water dragon is the larger and more colourful of the two water dragon species and is found in forests and jungles throughout India, China, Laos, Vietnam, Burma and Thailand. The Asian water dragon also has a third eye (known as the pineal gland), which is thought to be able to detect difference in light. Although water dragons are generally tree-dwelling animals, they also spend a great deal of time in or very close to the water. Water dragons are strong and capable swimmers and often leap into the water from the branches high above in order to escape approaching danger.


Like many other lizard species, water dragons are omnivorous animals eating a variety of plant and animal species. Water dragons primarily prey upon small animals such as lizards, frogs and rodents, insects and fish which they catch will there long tongue. Due to their relatively large size, water dragons have limited predators within their natural environment, although this is entirely dependent on where the area which the water dragon inhabits. Snakes, large birds and carnivorous mammals are the primary predators of the water dragon.


Water dragons hibernate during the cooler winters and begin breeding when they emerge in the spring. The female water dragon digs a burrow in the ground where she lays up to 18 eggs, and then buries them. The water dragon young hatch within a few months and remain close to the nest until they become bigger and more adventurous.  

Saturday, March 26, 2011

Tuatara


True Wild Life | Tuatara | The tuatara is a small to medium sized reptile, that is found only on a few small islands surrounding New Zealand. Although the tuatara was once found inhabiting mainland New Zealand in large numbers, today the tuatara is nearly extinct from the mainland. Despite the lizard-like appearance of the tuatara, the tuatara is actually only a very distant relative of the lizard and the snake. The tuatara is believed to have broken off from lizards and snakes more than 200 million years ago!.


Tuataras are generally green or brown in colour and can grow up to a meter in length, from the head of the tuatara to the tip of it's tail. The tuatara also has a crest that runs down the middle of it's body, which is particularly noticeable in male tuataras. The tuatara is a very unique reptile, with it's long tail and dinosaur-like crest, but the tuatara is has other features which make it stand out. Like all reptiles, the tuatara has excellent vision, but the tuatara also has a third eye on the top of it's head, it's use is still unknown. The tuatara is has two rows of teeth on it's upper jaw will line up either side of the teeth on the lower jaw.


The tuatara is a nocturnal reptile meaning that the tuatara rests during the hours of daylight and comes out to hunt for food at night. During the day, the tuatara sleeps in a burrow which it digs with it's strong claws into the ground. The tuatara also prefers temperatures that would be too cold for many other reptiles, and the tuatara hibernates during the colder winters. The tuatara is a carnivorous animal, meaning that the tuatara only eats other animals in order to survive. The tuatara primarily preys on insects, beetles, spiders, birds eggs, frogs and small reptiles and mammals.


Due to the fact that there are few real predators in New Zealand, the tuatara has no real native predators. However, since the introduction of cats, foxes, dogs and stouts, the tuatara populations have been wiped out in wide areas. Tuataras often live to be nearly 100 years old and so the tuatara only mates every 4 or 5 years. The female lays about a dozen leathery eggs which she digs into the ground. The eggs of the tuatara often take more than a year to hatch.

Tiger Shark


True Wild Life | Tiger Shark | The tiger shark is the fourth biggest shark in the world and is found in warmer and tropical waters in the Southern Hemisphere. The tiger shark tends to be found in more coastal waters but tigers sharks are also known to go into the deeper ocean if they need to hunt for food. The tiger shark is a fierce predator and tiger sharks hunt everything in the water including fish, seals, birds, turtles and even other sharks. The tiger shark gets it's name from the black stripes it has when it is young. Most tiger sharks lose these stripes as they get older.


Like most other species of shark, tiger sharks have sensors on the sides of their heads which enable them to detect small muscle movements from nearby creatures. The tiger shark also has a wedge-shaped head which allows the shark to turn quickly when it needs to. Tiger sharks can reach a top speed of around 20mph which is pretty fast in the water! Tiger sharks are extremely aggressive animals are thought to be one of the most dangerous sharks for humans to come into contact with. Tiger sharks are solitary hunters and usually do most of their hunting at night when the tiger shark can move through the water unseen.


Female tiger sharks mate every three years or so and the time of year when this happens depends on where the tiger shark lives. Tiger sharks in the Northern Hemisphere mate from March to May, where tiger sharks in the Southern Hemisphere mate from November to January. The eggs hatch inside the female tiger shark and can remain inside her for up to 16 months. When they are big enough, the female tiger shark gives birth to between 10 and 80 baby tiger sharks.


Tiger sharks usually range from between 3 to 5 metres in length. Although much larger specimens have been seen, the largest a tiger shark tends to get is around 5.5 metres long.