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Japanese macaques are the northernmost non-human primates, living where snow covers the ground for months

the gist

The Japanese macaque is a monkey native to Japan, often called the snow monkey because some groups live where snow lies for months each year. No other non-human primate lives farther north or in a colder climate. Its thick brownish-grey fur insulates it through winters, and it has a pinkish-red face and a short tail. Two subspecies are recognised. Some troops have learned to bathe in hot springs to stay warm.

how it works

Thick fur traps a layer of air, and the monkeys huddle together for warmth. Their diet shifts with the seasons, so they can find food even when snow covers the ground.

so what

Living in such cold shows how far primates can adapt beyond the tropics where most of their relatives live. It also makes the Japanese macaque a useful case study in cold tolerance.

fun fact

Some Japanese macaque troops soak in natural hot springs in winter, a behaviour that has been widely documented.

more on this

key facts

Conservation status
least concern
Scientific name
Macaca fuscata
Height
95

Facts: Wikidata (CC0)

Adapted from Wikipedia, the free encyclopedia · CC BY-SA 4.0

Image: Wikimedia Commons