The World Health Organization is working to improve public health worldwide.

New World monkeys live in South America.

The World Health Organization is working to improve public health worldwide.

Cephalopods are a type of marine life that includes squid and octopus.

He is always hanging out with bad friends. Truly, birds of a feather flock together.

He is an expert in paleoanthropology, conducting research on the origins of mankind.

Rodents are widely distributed around the world.

He is an expert in paleoanthropology, investigating archaeological sites around the world.

He is an expert in primatology and is engaged in the study of gorilla behavior.

He is famous as a countertenor singer.