Why do these monkeys look so weird

Why do the monkeys in Vietnam look so… odd? “The odd-nosed group” — that’s what scientists have called a group of primates found across Asia that share a common ancestry. Scientists think Vietnam’s monkeys—like the red-shanked douc and the Tonkin snub-nosed monkeys—developed their unique, flat or non-existent noses to adapt to the cold of high-elevation forests Credits Topics