
Nature
The muriqui and other Brazilian primates face extinction.

The muriqui and other Brazilian primates face extinction.

The muriqui and other Brazilian primates face extinction.

Chris Morgan visits a peat swamp forest that houses a sophisticated orangutan culture.

Chris Morgan visits a peat swamp forest that houses a sophisticated orangutan culture.

Men try to protect unique Brazilian animals and plants threatened by development of the Amazon jungle.

Men try to protect unique Brazilian animals and plants threatened by development of the Amazon jungle.

The black mamba, one of Africa's most dangerous and feared snakes.

The black mamba, one of Africa's most dangerous and feared snakes.

Romulus Whitaker uses science to determine whether dragons were real.

Romulus Whitaker uses science to determine whether dragons were real.

Some croc species have exceeded 20 feet -- Nile crocs.

Some croc species have exceeded 20 feet -- Nile crocs.

Joe Hutto's wild family is made up of mule deer living in the mountains near his home in Wyoming.

Joe Hutto's wild family is made up of mule deer living in the mountains near his home in Wyoming.

Scientists reveal the hidden world of white-tailed deer in a whole new light.

Scientists reveal the hidden world of white-tailed deer in a whole new light.

The current threats by man to five endangered species of rhino are contrasted with its flourishing history.

The current threats by man to five endangered species of rhino are contrasted with its flourishing history.

Goliath birdeater; small spider creates a web up to 30 feet long.

Goliath birdeater; small spider creates a web up to 30 feet long.