Celebrated primatologist Jane Goodall turned 81 yesterday. Back in 2002, Goodall controversially stated in an interview on NPR - prompted by a question from a caller - that she believed that a Bigfoot-type species did indeed exist, citing reports from Native Americans she has spoken to, as well as a news story at the time about a possible Yeti hair having been discovered.

Edited audio from the original interview can be listened to in the animated clip above - the transcript of the relevant section is below:

To read more and view the video, click here.