INDIAN TIGER
Tigers in India
Appearance and Physical Characteristics Though slim and elegant, tigers are immensely powerful. Their front legs and paws are tremendously strong: they can kill young elephants and rhino and drag prey weighing 200 kg. (5001 bs.) Or more.
Tigers walk on the fore pads of their feet, which gives their stride suppleness and elasticity. They have flexible forelegs that can twist inwards, allowing them to grasp prey. Their claws remain retracted until they are needed in the final moments of attack.
Tiger Facts:
Weight: Siberian tigers are the heaviest subspecies at 500 or more pounds (225 kg), with males heavier than females. The lightest subspecies is the Sumatran; males weigh about 250 pounds (110 kg) and females around 200 pounds (90 kg).
Measurements: Depending on the subspecies, the head-body length of a tiger is about 41/2 to 9 feet (1.4-2.8 m). The length of the tail is 3 to 4 feet (90-120 cm). The foot pads vary in size with age, resulting in inaccurate estimates when used in censusing wild populations.
Claws: Like domestic cats, tiger claws are retractable. Tiger scratches on trees serve as territorial markers.
Eyes: Tigers have round pupils and yellow irises (except for the blue eyes of white tigers). Due to a retinal adaptation that reflects light back to the retina, the night vision of tigers is six times better than that of humans.
Stripes: No one knows exactly why tigers are striped, but scientists think that the stripes act as camouflage, and help tigers hide from their prey. The Sumatran tiger has the most stripes of all the tiger subspecies, and the Siberian tiger has the fewest stripes. Tiger stripes are like human fingerprints; no two tigers have the same pattern of stripes.
Life span: The life span of tigers in the wild is thought to be about 10 years. Tigers in zoos live twice as long.
Habitat
Tigers inhabit many types of forests, from the mangrove swamps of Bangladesh to the coniferous forests of the Russian Far East. Dense vegetation, plenty of pre and minimum human interference are all requirements of good tiger habitat, as are pools for drinking and bathing. Tigers of the warmer climes love water and may even sleep with part of their body submerged. They are adept swimmers. Young tigers are agile enough to climb into trees but adults are generally too heavy. However, an angry tiger in Siberia was reported to have limbed into a tree in an attempt to swat the helicopter that was following it
Predation
Tigers can kill prey that exceeds their own weight. A tiger can eat over 30 kgs (66lvbs ) of meat in a single night, though a large kill ma be needed only once or twice a week. In the meantime, snacks such a peacocks, crabs turtles, fish, lizards, small birds or even locusts will suffice. Tigers are not exclusively carnivorous and will sometimes eat jungle fruits. Their stomachs often contain earth, and his is probably ingested to aid digestion.
In India, hog deer, chital (spotted deer), barking deer, sambar, nilgai and wild boar are the favorite prey, though tigers will also kill jungle ox and even young elephants and rhino of up to 450 kgs (1000 lbs ) in weight. Tigers will seek to porcupines, even though these prickly creatures have a nasty habit of backing into a pursuer in order to drive in their spines. Injuries form porcupines may fester and can even cause the death of a tiger. Tigers tend to hunt between dusk and dawn.
Tigers are too large and too heavy to run for long distances and therefore must patiently stalk their prey until they are close enough to make a final lunge for the neck. Effective camouflage is essential and in patches of sunshine and shade a motionless tiger is practically invisible. Despite being one of the most feared of the world's predators, tigers are often unsuccessful in catching their prey. Prey species have acute hearing and many run faster than a tiger. Some have alarm calls that warn all the animals in the vicinity to be wary.
If the tiger fails in a hunting attempt it must move to another area or wait until the forest becomes calm again.It is interesting to compare this technique with those used in more open habitats where there is not enough cover to conceal a stalking predator. In the African Savannahs, for example, cheetahs have developed unsurpassed speed and prides of lions have learnt to hunt cooperatively. The remains of a kill are also more difficult to conceal, and any left uneaten will be quickly finished off by scavengers.
Cooperative hunters therefore share the kill amongst themselves, so that nothing is wasted on those animals who are looking for a free lunch. The development of different hunting strategies to suit habitat types is part of a process known as optimization. Tiger behavior is flexible and the choice of prey, as well as the technique for catching in, will be influenced by how plentiful the prey is and how easily it is caught. Tigers in areas where the vegetation is less dense are more likely to hunt large prey cooperatively and to share their kill.
This was the case in Ranthambore National Park during the 1980s. Up to nine tigers were seen lying together in a social group, just like a pride of lions. Tiger were observed sharing their prey not only with their young, but also with other adults. Rather than a strict hierarchy, it seems that the titer that makes the kill always gets the first meal, even if the other tigers present are larger.
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