Hyenas chew production team cables
24 July 2014 Last updated at 01:59 BST
The production team from BBC Two documentary, Africa 2013: Countdown to the Rains, discovered that hyenas were chewing through their cables and cameras.
The half-chewed cameras are among the objects in an exhibition of natural history film-making titled Nature, Camera, Action! at the National Media Museum in Bradford.
Presenter Kate Humble explains the problem faced by the team.