Extinct giant kangaroos tiptoed one leg at a time
Fossil clues suggest refrigerator-sized sthenurines did not hop
![illustration of extinct kangaroo walking](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2014/10/sm_giantkangaroo_feat_free.jpg?fit=860%2C460&ssl=1)
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