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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 flat-tailed horned lizard occurs in areas of fine sand, while the short-horned lizard (P. douglasii) is found in shortgrass prairie all the way up into spruce-fir forest. The most common species in the Arizona Upland subdivision is the regal horned lizard ( P. solare ), which frequents rocky or gravelly habitats of arid to semiarid plains ...
Their common names refer directly to their horns or to their flattened, rounded bodies, and blunt snouts. The generic name Phrynosoma means "toad-bodied". In common with true toads ( amphibians of the family Bufonidae ), horned lizards tend to move sluggishly, often remain motionless, and rely on their remarkable camouflage to avoid detection ...
The flat-tail horned lizard has flanges with fringed edges to conceal its shadow in the open desert. Diagram illustrates the camouflage principles involved. The flat-tail horned lizard has evolved elaborate camouflage measures to eliminate shadow. Their bodies are flattened, with the sides thinning to an edge; the animals habitually press their ...
The regal horned lizard is a small, flat lizard about the size of the palm of a human's hand. It has spikes all around the lateral surface of its body. It is 3–4 in (117 mm) in length from nose to tail as a full adult, and pale grey to yellow-brown or reddish in color, topped with dark blotches alongside the body and back.
The researchers compared the genomes of six species of apes, including humans, and 15 species of monkeys with tails to pinpoint key differences between the groups. Our ancient animal ancestors had ...
Their tails begin red and change to yellow at the ends. Their bellies are mostly blue, but the centers are black. This subspecies can be found in southern Mpumalanga, a province of South Africa. P. i. wilhelmi may not be a subspecies of Platysaurus intermedius, as it possibly is closer to the Lebombo flat lizard, Platysaurus lebomboensis. Males ...
The hooves are broad with flat soles and strong dewclaws to help them walk on soft sand. [12] All four feet possess scent glands. [4] The life span of the addax is up to 19 years in the wild, [6] which can be extended to 25 years under captivity. [4] [11] The addax closely resembles the scimitar oryx, but can be distinguished by its horns and ...