Kangaroos and wallabies are the only hopping species heavier than 5kg, and the small musky rat-kangaroo might help us learn why
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Scientists stalking a small marsupial through a remote Australian rainforest say they may have found a clue to the mystery of why its bigger kangaroo cousins hop instead of walk.
Kangaroos and closely related wallabies are the only large animals to hop upright on two legs, researchers from Australia’s Flinders University said Thursday, but why remains a mystery.
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