Filmed for the first time underground in an ingeniously constructed sett, wild badgers groom, sleep, and even fight for possession of the chamber within a few feet of a hidden camera.

An incredible look at cephalopods – squids, octopi, and cuttlefish, from the Wildlife on One series. Filmed from Hawaii to the Gulf of Mexico, and using computers, scientists study the shape and color-changing abilities of these bizarre animals. Narrated by David Attenborough.

David Attenborough looks at how research has finally revealed the secret behind the remarkable sticking power of the gecko's foot. This discovery could offer truly futuristic ways of sticking objects together, and may even help NASA to explore distant planets. Including a look at the urban-dwelling tokay gecko that happily resides alongside the citizens of Bangkok as one of the few reptiles tolerated in homes.