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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).
Often mistaken with the southern giraffe, the northern giraffe differs by the shape and size of the two distinctive horn-like protuberances known as ossicones on its forehead; they are longer and larger than those of southern giraffe. Male northern giraffes have a third cylindrical ossicone in the center of the head just above the eyes, ranging ...
Because of their size, eyesight and powerful kicks, adult giraffes are mostly safe from predation, [43] with lions being their only major threats. [50]: 55 Calves are much more vulnerable than adults and are also preyed on by leopards, spotted hyenas and wild dogs. [51] A quarter to a half of giraffe calves reach adulthood.
The Masai giraffe is distinguished by jagged and irregular spots on its body. Its geographic range includes various parts of eastern Africa. [7] [8] [9] It is the largest-bodied giraffe species, making it the tallest land animal on Earth. [7]
The Gerenuk stages of growth have a timespan from 4 months to 2.5 years: at four months, their shoulder height is about two-thirds of adult female, at six months their shoulder height is about three-quarters of adult female, at eight months their horn tips are clearly visible (about 1cm long), at one year their shoulder height is nearly equal ...
Size varies considerably; the smallest member, the mouse deer, often reaches a body length of only 45 centimeters (18 in) and a weight of 1.5 kilograms (3.3 lb). The largest member, the hippopotamus, can grow up to 5 meters (16 ft) in length and weigh 4.5 metric tons (5 short tons), and the giraffe can grow to be 5.5 meters (18 ft) tall and 4.7 ...
Thornicroft's giraffe (Giraffa camelopardalis thornicrofti), also known as the Rhodesian giraffe or Luangwa giraffe, is a subspecies of giraffe.It is sometimes considered a species in its own right (as Giraffa thornicrofti) [2] or a subspecies of the Masai giraffe (as Giraffa tippelskirchi thornicrofti).
Sivatheriinae is an extinct subfamily of giraffids characterized by their robust size, short limbs, and the presence of large complicated ossicones in males. [2] These animals lived in Asia, Africa, and parts of Europe from the late Miocene and early Pleistocene.