What mammal can rotate its head 180 degrees?

The mammal that can rotate its head 180 degrees is the tarsier. This remarkable movement helps the tiny primate survey its surroundings while keeping its large eyes fixed forward.

Tarsiers are nocturnal primates native to islands in Southeast Asia, including the Philippines, Sulawesi, and parts of Indonesia. Their enormous eyes are highly effective in low light, but unlike many nocturnal mammals, they cannot swivel their eyes. Head rotation compensates for that limitation, allowing a tarsier to look almost directly behind itself.

The 180-degree figure is often misunderstood. It means the animal can turn its head 180 degrees in either direction, giving it an almost complete 360-degree view—not that it spins its head all the way around in one continuous movement. This is why owls are a common wrong answer: owls are famous for similar head rotation, but they are birds, not mammals.

Tarsiers are also unusual among primates because they have a fovea, a retinal structure associated with sharp vision, but lack a tapetum lucidum, the reflective layer found in many nocturnal animals.