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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.
An African elephant in Tanzania, with visible tusks. Tusks are elongated, continuously growing front teeth that protrude well beyond the mouth of certain mammal species. They are most commonly canine teeth, as with narwhals, chevrotains, musk deer, water deer, muntjac, pigs, peccaries, hippopotamuses and walruses, or, in the case of elephants, elongated incisors.
The mosaic was interrupted by large bumps that lined the sides of the animal, and there are no hints of feathers. The distinctive horns and the muscular neck may have been used in fighting conspecifics. According to separate studies, rivaling individuals may have combated each other with quick head blows, by slow pushes with the upper sides of ...
The animal gets its name from its horn sheaths that branch and have a ... Adult males are 1.3–1.5 m (4 ft 3 in – 4 ft 11 in) long from nose to tail, stand 81 ...
The horns, which are found on both males and females, have two to three twists and are typically 55 to 80 cm (22 to 31 in) in females and 70 to 85 cm (28 to 33 in) in males, although the maximum recorded length is 109.2 cm (43.0 in). [4] The lower and middle portions of the horns are marked with a series of 30 to 35 ring-shaped ridges. [4]
One pair of horns is located between the ears, and the other on the forehead. The posterior horns are always longer than the anterior horns, which might be mere fur-covered studs. While the posterior horns each measures 8–12 centimetres (3.1–4.7 in), the anterior ones measure 2–5 centimetres (0.79–1.97 in).
Stegosaurus (/ ˌ s t ɛ ɡ ə ˈ s ɔːr ə s /; [2] lit. ' roof-lizard ') is a genus of herbivorous, four-legged, armored dinosaur from the Late Jurassic, characterized by the distinctive kite-shaped upright plates along their backs and spikes on their tails.
The average total length (body and tail) is 30–60 cm (12–24 in), with a maximum total length of 85 cm (33 in). Females are larger than males. [4] One of the most distinctive characteristics of this species is the presence of supraorbital "horns", one over each eye. However, these may be reduced in size or absent (see genus Cerastes). [4]