Leopard — The leopard (Panthera pardus) is an Old World mammal of the Felidae family and the smallest of the four ‘big cats’ of the genus Panthera, along with the tiger, lion, and jaguar. Leopards that are melanistic, either all-black or very dark in coloration, are known colloquially as black panthers. Once distributed across southern Eurasia and Africa, from Korea …

Lion — The lion (Panthera leo) is a member of the family Felidae and one of four “big cats” in the genus Panthera. With exceptional large 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 a critically endangered remnant population in …

Lemming — Lemmings are small rodents, usually found in or near the Arctic, in tundra biomes. Together with the voles and muskrats, they make up the subfamily Arvicolinae (also known as Microtinae), which forms part of the largest mammal radiation by far, the superfamily Muroidea, which also includes the rats, mice, hamsters, and gerbils. Lemmings weigh from 30 to 112 …

Monkey — A monkey is any member of either the New World monkeys or Old World monkeys, two of the three groupings of simian primates, the third group being the apes. There are 264 known extant species of monkey. The New World monkeys are classified within the parvorder Platyrrhini, whereas the Old World monkeys (superfamily Cercopithecoidea) form part of the …

Gerbil — A gerbil is a small mammal of the order Rodentia. Once known simply as “desert rats”, the gerbil subfamily includes about 110 species of African, Indian, and Asian rodents, including sand rats and jirds, all of which are adapted to arid habitats. Most are primarily diurnal (though some, including the common household pet, do exhibit crepuscular behavior), and …

Gazelle — A gazelle is an antelope of the genus Gazella, although the three members of the genus Procapra also widely are referred to as gazelles. Gazelles are known as swift animals; they are able to reach high speeds (as high as 50-55 mph) for long periods of time. Gazelles are mostly found in the grasslands and savannas of Africa, …

Giraffe — The giraffe (Giraffa camelopardalis) is an African even-toed ungulate mammal, the tallest of all land-living animal species. Males can be 4.8 to 5.5 metres (16 to 18 feet) tall and weigh up to 1,300 kilograms (3,000 pounds). The record-sized bull was 5.87 m (19.2 ft) tall and weighed approximately 2,000 kg (4,400 lb). Females are generally slightly shorter, …

Gibbon — Gibbons are the small apes in the family Hylobatidae. The family is divided into four genera based on their diploid chromosome number: Hylobates (44), Hoolock (38), Nomascus (52), and Symphalangus (50). The extinct Bunopithecus sericus is a gibbon or gibbon-like ape which, until recently, was thought to be closely related to the Hoolock gibbons. Gibbons occur in tropical …

Gopher — A gopher is a small burrowing rodent. All gophers have in common the digging of tunnels and subterranean chambers and the traits associated with the rodent order, Rodentia. Disruption of such human plans for the surface as commercial agriculture, garden plots, and some landscaping, by their underground activities, leads to their frequent treatment as pests. In contrast, North …

Groundhog — The groundhog (Marmota monax), also known as the woodchuck, land beaver, or whistlepig, is a rodent of the family Sciuridae, belonging to the group of large ground squirrels known as marmots. Most marmots, such as yellow-bellied and hoary marmots, live in rocky and mountainous areas, but the woodchuck is a lowland creature. It is widely distributed in North …