How many legs does a kangaroo have? FIVE: Tail is used as extra limb to help the creatures move, claims study

Tail provide as much driving force as their front and hind legs combined
A kangaroo moves its tails as much as a human moves one of their legs
No animal other than the kangaroo uses its tail like a leg, the study claims
It was previously thought tail was only used for balance and not power
'They appear to be awkward and ungainly walkers' said Professor Rodger Kram. 'But it turns out it is not really that awkward, just weird'