👉 The term "echelus" is a scientific term in the field of zoology, specifically pertaining to the structure of echidna (a type of bear). An echidna is an arboreal mammal that primarily lives on the ground. It has a long neck and a large beak for cutting through vegetation. The term "echelus" refers to a specific part or layer of these animals, which are known as echidna nests.
