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Male okapi displaying his striking horizontal stripes. The okapi is a medium-sized giraffid, standing 1.5 m (4 ft 11 in) tall at the shoulder. Its average body length is about 2.5 m (8 ft 2 in) and its weight ranges from 200 to 350 kg (440 to 770 lb). [25] It has a long neck, and large and flexible ears.
The fuller name, Okapi BM25, includes the name of the first system to use it, which was the Okapi information retrieval system, implemented at London's City University [1] in the 1980s and 1990s. BM25 and its newer variants, e.g. BM25F (a version of BM25 that can take document structure and anchor text into account), represent TF-IDF -like ...
In okapi, the male's ossicones are smaller in proportion to the head, and taper towards their tips, forming a sharper point than the comparatively blunt giraffe ossicone. Whereas female giraffes have reduced ossicones, female okapi lack ossicones entirely. The morphology of ossicones in the extinct relatives of giraffes and okapi varies widely.
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).
Others find that the okapi lineage diverged earlier, before Giraffokeryx. [8] Samotherium was a particularly important transitional fossil in the giraffe lineage, as the length and structure of its cervical vertebrae were between those of a modern giraffe and an okapi, and its neck posture was likely similar to the former's. [9]
The diagram shows that both giraffes and okapi have 7 cervical vertebrae. Almost all mammals -- including humans -- have 7 cervical vertebrae. Could someone either add more information explaining this picture, or remove it? --BooksXYZ 07:53, 30 October 2019 (UTC) OKK liioiio ii 37.210.157.253 07:00, 6 November 2023 (UTC)
The Okapi Wildlife Reserve – an area 13,700 square kilometers, about one-fifth of the Ituri Forest – was created with the help of the Okapi Wildlife Project in 1992. The project continues to support the reserve by training and equipping wildlife guards and by providing assistance to improve the lives of neighboring communities. [1]
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