Extinct giant kangaroos tiptoed one leg at a time

Fossil clues suggest refrigerator-sized sthenurines did not hop

illustration of extinct kangaroo walking

NOT A HOPPER  The extinct supersized kangaroo Sthenurus stirlingi probably tiptoed one hind leg at a time instead of hopping, says a new study.

Brian Regal, C.M. Janis et al/PLOS ONE 2014

The real hulks among extinct kangaroos probably didn’t hop.