Claw A claw is a curved, often sharp appendage at the tip of a digit in many vertebrates and some invertebrates, used for grasping, digging, defense and other functions; made chiefly of…
Cloaca: single posterior chamber for excretion and reproduction in vertebrates Cloaca Cloaca: a single posterior chamber in many vertebrates that expels urine and feces and supports reproductive functions, found in birds, reptiles and monotremes, and contrasted with…
