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Lion

The lion (Panther Leo) is one of the four big cats in the genus Panther, and a member of the family Felidae.
With some males exceeding 250 kg (550 lb) in weight,[4] 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 Parking India, having disappeared from North Africa and SouthwestAsia 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.[5] The lion is a vulnerable, having seen a possibly irreversible population decline of thirty to fifty percent over the past twodecades in its African range.[2] Lion populations are untenable outside designated reserves and national parks. Although the cause of the decline is not fully understood, habitat loss and conflicts with humans are currently the greatest causes of concern. Within Africa, the West African lion population is particularly endangered. Lions live for ten to fourteen years in the wild, while in captivitythey can live longer than twenty years. In the wild, males seldom live longer than ten years, as injuries sustained from continual fighting with rival males greatly reduce their longevity.[6] They typically inhabit savanna and grassland, although they may take to bush and forest. Lions are unusually social compared to other cats. A pride of lions consists of related females and offspring and asmall number of adult males. Groups of female lions typically hunt together, preying mostly on large ungulates. Lions are apex and keystone predators, although they scavenge as opportunity allows. While lions do not typically hunt humans, some have been known to do so. Highly distinctive, the male lion is easily recognized by its mane, and its face is one of the most widely recognized animalsymbols in human culture. Depictions have existed from the Upper Paleolithic period, with carvings and paintings from the Lascaux and Chauvet Caves, through virtually all ancient and medieval cultures where they once occurred. It has been extensively depicted in sculptures, in paintings, on national flags, and in contemporary films and literature. Lions have been kept in menageries since the timeof the Roman Empire and have been a key species sought for exhibition in zoos the world over since the late eighteenth century. Zoos are cooperating worldwide in breeding programs for the endangered Asiatic subspecies. It seems to impede the male's ability to be camouflaged when stalking the prey and create overheating in chases. The colour of the male's mane varies from blond to black,generally becoming darker as the lion grows older. A lion may gorge itself and eat up to 30 kg (66 lb) in one sitting;[80] if it is unable to consume all the kill it will rest for a few hours before consuming more. On a hot day, the pride may retreat to shade leaving a male or two to stand guard. An adult lioness requires an average of about 5 kg (11 lb) of meat per day, a male about 7 kg (15.5 lb)Dog

The domestic dog (Canis lupus familiaris[3] and Canis lupus dingo[1][2]) is a domesticated form of the gray wolf, a member of the Canidae family of the order Carnivora. The term is used for both feral and pet varieties. The dog may have been the first animal to be domesticated, and has been the most widely kept working,hunting, and companion animal in human history. The word "dog" mayalso mean the male of a canine species,[4] as opposed to the word "bitch" for the female of the species.[5]
Dogs were domesticated from gray wolves about 15,000 years ago.[6] They must have been very valuable to early human settlements, for they quickly became ubiquitous across world cultures. Dogs perform many roles for people, such as hunting, herding, pulling loads, protection, assisting...