Lion - Panthera leo The lion (Panthera leo) is one of the four big cats in the genus Panthera, and a member of the family Felidae. With some males exceeding 250 kg (550 lb) in weight, it is the second-largest living cat after the tiger. Wild lions currently exist in Sub-Saharan Africa and in Asia with an endangered remnant population in Gir Forest National Park in India, having disappeared from North Africa and Southwest Asia in historic times. Until the late Pleistocene, about 10,000 years ago, the lion was the most widespread large land mammal after humans. They were found in most of Africa, across Eurasia from western Europe to India, and in the Americas from the Yukon to Peru. The lion is a vulnerable species, having seen a possibly irreversible population decline of thirty to fifty percent over the past two decades in its African range. The African lion is a very large cat, with males weighing between 330 and 550 pounds and females weighing between 260 and 400 pounds. It is 8 to 10 feet long, not including the tail. Its most famous feature is its mane, which only male lions have. The mane is a yellow color when the lion is young and darkens with age. Eventually, the mane will be dark brown. The body of the African lion is well suited for hunting. It is very muscular, with back legs designed for pouncing and front legs made for grabbing and knocking down prey. It also has very strong jaws that enable it to eat the large prey that it hunts.
Tiger - Panthera tigris The tiger (Panthera tigris) is the largest extant cat species and a member of the genus Panthera. It is most recognisable for its dark vertical stripes on orange-brown fur with a lighter underside. It is an apex predator, primarily preying on ungulates such as deer and wild boar. It is territorial and generally a solitary but social predator, requiring large contiguous areas of habitat, which support its requirements for prey and rearing of its offspring. Tiger cubs stay with their mother for about two years, before they become independent and leave their mother's home range to establish their own.They have exceptionally stout teeth, and their canines are the longest among living felids with a crown height of as much as 74.5 mm (2.93 in) or even 90 mm (3.5 in). In zoos, tigers have lived for 20 to 26 years, which also seems to be their longevity in the wild. They are territorial and generally solitary but social animals, often requiring large contiguous areas of habitat that support their prey requirements. This, coupled with the fact that they are indigenous to some of the more densely populated places on earth, has caused significant conflicts with humans. Tigers are muscular, have powerful forequarters, and especially in males, a large head. The ground coloration of their fur varies between tawny and xanthine orange or cinnamon brown in the southernmost populations, to between ochraceous-orange or zinc orange or capucine orange in the northernmost populations. The face is framed by long hairs that form whiskers, which are more conspicuous in males. The ventral parts are usually white. The body is marked with black or chaetura black stripes of various length, breadth and form. The pupils are circular with yellow irises. The rather small ears are rounded and black on their dorsal side with a conspicuous white central spot. These spots, called ocelli, play an important role in intraspecific communication. The tiger are the most variable in size of all big cats, even more so than the leopard and much more so than lions. The Bengal and Siberian tiger subspecies represent the largest living felids, and rank among the biggest felids that ever existed. Females vary in size from 240 to 275 cm (94 to 108 in), weigh 85 to 167 kg (190 to 370 lb) with a greatest length of skull ranging from 268 to 318 mm (10.6 to 12.5 in). Males vary in size from 270 to 330 cm (110 to 130 in), weigh 170 to 306 kg (370 to 670 lb) with a greatest length of skull ranging from 316 to 383 mm (12.4 to 15.1 in).
