S4E1:Animal Frankensteins

6 Mar 201722 minTV-G

Hybrids can be bizarre, and they can be deadly. In this engrossing natural history documentary, David Attenborough looks at two hybrid animals that owe their existence to humans. The pizzly bear (a cross between a polar and grizzly bear) has come into being because of global warming, and the killer bee was brought into existence because of the transfer of African bees to South America.