Research conducted by scientists in Australia, the US and Canada shows that kangaroos plant their tails on the ground in sequence prior to their hind legs, pushing them forwards. This gives the tail the role of a 'third leg', doing a similar job to a human leg – a far different role than proposed by the previous theory that the tail merely provides support and balance
Source: Guardian
Wed 2 Jul 2014 05.48 BST First published on Wed 2 Jul 2014 05.48 BST