In 1960, a young David Attenborough helped capture the first-ever audio of Madagascar’s largest lemur, the indri. Using a battery-powered portable tape recorder, he played the sounds back to the ...

Watch a clip from the film "Island of Lemurs: Madagascar," a documentary that follows Dr. Patricia C. Wright's mission to help lemurs, the highly evolved creatures who are now highly endangered.

If you liked this story, share it with other people. During the mating season, male ring-tailed lemurs rub secretions from glands on their wrists onto their tails and wave them at female lemurs. These ...