David Attenborough's Natural Curiosities

David Attenborough's Natural Curiosities

Available on iTunes, BBC iPlayer
Animal Frankensteins S4, E1: Hybrids can be bizarre and they can be deadly. We look at two hybrid animals that owe their existence to human interference - the pizzly bear (a cross between a polar bear and grizzly), which has come into being because of global warming, and the killer bee brought into existence because of the transfer of African bees to South America.
Starring David Attenborough