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The Giraffidae are a family of ruminant artiodactyl mammals that share a recent common ancestor with deer and bovids.This family, once a diverse group spread throughout Eurasia and Africa, presently comprises only two extant genera, the giraffe (between one and eight, usually four, species of Giraffa, depending on taxonomic interpretation) and the okapi (the only known species of Okapia).
Biomineralization the secrete protective shells or carapaces made out of organically made hard materials like mineral carbonates and organic chitins came about in unrelated species all at the same time during the cambrian Explosion in: mollusks, brachiopods, arthropods, bryozoans, echinoderms, tube worms.
Some biologists suggest the modern giraffes descended from G. jumae; [10] others find G. gracilis a more likely candidate. G. jumae was larger and more robust, while G. gracilis was smaller and more slender. [6] The changes from extensive forests to more open habitats, which began 8 mya, are believed to be the main driver for the evolution of ...
The current IUCN taxonomic scheme lists one species of giraffe with the name G. camelopardalis and nine subspecies. [1] [7] A 2021 whole genome sequencing study suggests the northern giraffe as a separate species, and postulates the existence of three distinct subspecies, [8] and more recently, one extinct subspecies.
Articles relating to the giraffe, a tall African hoofed mammal belonging to the genus Giraffa. It is the tallest living terrestrial animal and the largest ruminant on Earth. The giraffe's chief distinguishing characteristics are its extremely long neck and legs, its horn-like ossicones , and its spotted coat patterns.
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Although the okapi has striped markings reminiscent of zebras, it is most closely related to the giraffe. The okapi and the giraffe are the only living members of the family Giraffidae. The okapi stands about 1.5 m (4 ft 11 in) tall at the shoulder and has a typical body length around 2.5 m (8 ft 2 in).
The South African giraffe or Cape giraffe (Giraffa giraffa [2] or Giraffa camelopardalis giraffa) is a species or subspecies of giraffe found in South Africa, Namibia, Botswana, Zimbabwe, Eswatini and Mozambique. It has rounded or blotched spots, some with star-like extensions on a light tan background, running down to the hooves.