Mammals are characterized by:

Question

Quizplus · Accepted Answer

Mammals are characterized by having hair or fur, which is a defining feature that distinguishes them from other animal groups. Homodont dentition (A) refers to having teeth of the same type, which is not a characteristic of mammals; mammals typically have heterodont dentition, with different types of teeth (incisors, canines, molars, etc.). While mammals do have bones in their middle ear, the characteristic feature is having three bones in the middle ear (the malleus, incus, and stapes), not one bone (B).

Mammals Are Characterized By