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True horns are found mainly among: Ruminant artiodactyls. Antilocapridae ; Bovidae (cattle, goats, antelopes etc.). Giraffidae: Giraffids have a pair of skin covered bony bumps on their heads, called ossicones. Cervidae: Most deer have antlers, which are not true horns due to lacking a bone core and made of keratin.
The horns also make the animals a prized game trophy, which has led to the near-extinction of the two northern species. As an introduced species Between 1969 and 1977, the New Mexico Department of Game and Fish in the US intentionally released 95 gemsbok into its state's White Sands Missile Range [ 14 ] and that population is now estimated ...
The two species look similar, though greaters are larger than lessers. A large adult male greater kudu stands over 5 feet (1.5 m) tall at the shoulder, and a large male lesser kudu stands about 4 feet (1.2 m) tall. Males of both species have long horns, which point upward and slightly back, curling in a corkscrew shape. [1]
Gemsbok are light taupe to tan in color, with lighter patches toward the bottom rear of the rump. Their tails are long and black in color. A blackish stripe extends from the chin down the lower edge of the neck, through the juncture of the shoulder and leg along the lower flank of each side to the blackish section of the rear leg.
The Arabian oryx' coat is an almost luminous white, the undersides and legs are brown, and black stripes occur where the head meets the neck, on the forehead, on the nose, and going from the horn down across the eye to the mouth. Both sexes have long, straight or slightly curved, ringed horns which are 0.61–1.49 m (2–4.9 ft).
The horns form the first spiral rotation at around 2 years of age, and not reaching the full two and a half rotations until they are 6 years old; occasionally they may even have 3 full turns. [ 2 ] The greater kudu is one of the largest species of antelope, being slightly smaller than the bongo .
There is a short mane of brownish hair, as well as tufts of black hair above the hooves, at the end of the tail, and on the ears. It is from the last feature, unique among the various kinds of oryx, that the subspecies gains its common name. [4] The horns are 76 to 81 cm (30 to 32 in) long, and almost straight, with only a slight backwards curve.
The long-eared jerboa (Euchoreutes naso) [2] is a nocturnal mouse-like rodent with a long tail, long hind legs for jumping, and exceptionally large ears. It is distinct enough that authorities consider it to be the only member of both its genus, Euchoreutes, and subfamily, Euchoreutinae. Long-eared jerboas are found in the Palearctic ecozone.