David Attenborough's Natural Curiosities: Curious Feeders

Sir David Attenborough examines the mysteries behind some of nature's most fascinating creatures and plants. The blue whale and the flamingo both have strange bodies determined by their diet. Blue whales grow enormous by feeding on tiny shrimp-like creatures, while flamingos spend their lives eating with their heads upside down. Both are oddities in their own groups and yet both are curiously similar.