There's no better example of this than the bald-headed uakari (Cacajao calvus), a monkey hailing from the Amazon rain forest that boasts a bald crown punctuated by bright, crimson-hued skin.

Hairless and red-faced may not be typical adjectives to describe good health, but healthy bald uakari monkeys possess both of these qualities. These primates are mostly known for their bright red ...

Hairless and red-faced may not be typical adjectives to describe good health, but healthy bald uakari monkeys possess both of these qualities. These primates are mostly known for their bright red ...