The discovery of a new powerfully built ape fuelled stories of savage beasts.
The largest of the primates, gorillas aren't as savage as they were once thought to be.
Dian Fossey was a prominent American primatologist studying mountain gorillas in Rwanda.
View images of Sir David Attenborough as he presents Gorilla Revisted.
Everyone has a soft spot for the iconic orang-utan, the king of the swingers.
Orangutans can put their arms around your neck while you're filming.
Zoologist and TV presenter Charlotte Uhlenbroek does a rendition of a pant hoot.
Charlotte Uhlenbroek talks about Freud the chimp.
Charlotte Uhlenbroek tells how she saw a chimp wiping the dirt off his hand with a leaf.
Charlotte Uhlenbroek talks about the relationships chimps have with their siblings.
Nature presenter and primate expert Charlotte Uhlenbroek talks about her love of chimps.
Sir David Attenborough talks about Madagascan lemurs.
Locked on the island of Madagascar, it's no wonder lemurs are so unique!
Monkeys are incredibly diverse, intelligent primates.
Baby monkeys can tug at the heart strings of even the sternest of people.
A gallery of images from the series Mountain Gorilla.
Sir David Attenborough talks about interacting with gorillas.
Simians are classified as the higher primates, and include apes and monkeys.
No cages - just you and the world's largest primates, deep in the jungle.
With as few as 15,000 orangutans left in the wild, a personal encounter is magical.
The isolated island of Madagascar is famous for its lemur inhabitants.