Giraffe


The giraffe is a tall African hoofed mammal belonging to the genus Giraffa. It is the tallest living terrestrial animal and the largest ruminant on Earth. Traditionally, giraffes were thought to be one species, Giraffa camelopardalis, with nine subspecies. Most recently, researchers proposed dividing giraffes into up to eight extant species due to new research into their mitochondrial and nuclear DNA, as well as morphological measurements. Seven other extinct species of Giraffa are known from the fossil record.

The giraffe's chief distinguishing characteristics are its extremely long neck and legs, its horn-like ossicones, and its spotted coat patterns. It is classified under the family Giraffidae, along with its closest extant relative, the okapi. Its scattered range extends from Chad in the north to South Africa in the south, and from Niger in the west to Somalia in the east. Giraffes usually inhabit savannahs and woodlands. Their food source is leaves, fruits, and flowers of woody plants, primarily acaciaspecies, which they browse at heights most other herbivores cannot reach.

Lions, leopards, spotted hyenas, and African wild dogs may prey upon giraffes. Giraffes live in herds of related females and their offspring, or bachelor herds of unrelated adult males, but are gregarious and may gather in large aggregations. Males establish social hierarchies through "necking,” which are combat bouts where the neck is used as a weapon. Dominant males gain mating access to females, which bear the sole responsibility for raising the young.

The giraffe has intrigued various ancient and modern cultures for its peculiar appearance, and has often been featured in paintings, books, and cartoons. It is classified by the International Union for Conservation of Nature (IUCN) as vulnerable to extinction and has been extirpated from many parts of its former range. Giraffes are still found in numerous national parks and game reserves, but estimates as of 2016 indicate there are approximately 97,500 members of Giraffa in the wild. More than 1,600 were kept in zoos in 2010.

The name "giraffe" has its earliest known origins in the Arabic word zarāfah (زرافة),[2] perhaps borrowed from the animal's Somali name geri.[3] The Arab name is translated as "fast-walker".[4] In early Modern English the spellings jarraf and ziraph were used, probably directly from the Arabic,[5] and in Middle English orafle and gyrfaunt, gerfaunt. The Italian form giraffa arose in the 1590s. The modern English form developed around 1600 from the French girafe.[2]

"Camelopard" /kəˈmɛləˌpɑːrd/ is an archaic English name for the giraffe; it derives from the Ancient Greek καμηλοπάρδαλις (kamēlopárdalis), from κάμηλος (kámēlos), "camel", and πάρδαλις (párdalis), "leopard", referring to its camel-like shape and leopard-like colouration.[6][7]


The extinct giraffid Samotherium (middle) in comparison with the okapi (below) and giraffe. The anatomy of Samotherium appears to have shown a transition to a giraffe-like neck.[13]
Map showing "Approximate geographic ranges, fur patterns, and phylogenetic relationships between some giraffe subspecies based on mitochondrial DNA sequences. Colored dots on the map represent sampling localities. The phylogenetic tree is a maximum-likelihood phylogram based on samples from 266 giraffes. Asterisks along branches correspond to node values of more than 90% bootstrap support. Stars at branch tips identify paraphyletic haplotypes found in Maasai and reticulated giraffes".[20]
Giraffe skeleton on display at the Museum of Osteology, Oklahoma City, Oklahoma
Closeup of the head of a northern giraffe
Right hind leg of a Masai giraffe at San Diego Zoo
Adult male reticulated giraffe feeding high up on an acacia, in Kenya
Scheme of path of the recurrent laryngeal nerve in giraffe
Reticulated giraffe bending down to drink in Kenya. The circulatory system is adapted to deal with blood flow rushing down its neck.
A Masai giraffe extending its tongue to feed, in Tanzania. Its tongue, lips and palate are tough enough to deal with sharp thorns in trees.
Gathering of female South African giraffes in Tswalu Kalahari Reserve, South Africa. These animals commonly gather in herds.
Angolan giraffes mating in Namibia
Female Angolan giraffe with calf
Here, male South African giraffes engage in low intensity necking to establish dominance, in Ithala Game Reserve, Kwa-Zulu-Natal, South Africa.
Lioness seen with an adult Masai giraffe kill
San rock art in Namibia depicting a giraffe
Painting of a giraffe imported to China during the Ming dynasty
Endangered West African giraffe near Koure, Niger