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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 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 ...
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.
To avoid being picked up by the head or neck, a horned lizard ducks or elevates its head and orients its cranial horns straight up, or back. If a predator tries to take it by the body, the lizard drives that side of its body down into the ground so the predator cannot easily get its lower jaw underneath. [citation needed]
It ranges in size between 2.5 and 3.8 in (6.4 and 9.7 cm) from snout to cloaca, and can get to 5.5 in (14 cm) long including the tail. Like all horned lizards, it features horns on the back of its head and sharp scales on its back. Its color typically varies depending on the local environment, ranging from shades of red, brown, gray, and tan to ...
Lokiceratops had two curving horns more than 16 inches (40 cm) long above its eyes, small horns on its cheeks, and blades and spikes along its extended head shield. Dinosaur from Montana had horns ...
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 ...
Meiolania was a well-armored animal with a somewhat raised carapace with spiky edges, osteoderm-covered frontlimbs, a head adorned by massive cow-like horns and a tail encased by spiked tail rings and tipped by a large bony club.