Don’t say a word
Because the desert is not a source of plentiful vegetation, camels cannot be picky eaters if they want to survive. he lining of the camel’s mouth is very tough, to enable the animal to eat whatever it can digest, when food is scarce. This way, it can eat thorny cactus plants without injuring its mouth.
The mouth of the leatherback sea turtle. The leatherback turtle (Dermochelys coriacea), is the largest of all living turtles. Instead of teeth, the leatherback turtle has points on the tomium of its upper lip, with backwards spines in its throat to help it swallow food.