Pleistocene-Age Fossils Reveal Hopping Wasn’t Just for Small Kangaroos Sci.NewsBiomechanical limits of hopping in the hindlimbs of giant extinct kangaroos | Scientific Reports NatureKangaroos’ giant ancestor probably able to hop despite 250kg weight, scientists say The GuardianAncient giant kangaroos could have hopped despite their huge size New ScientistAncient, giant kangaroo was likely hopping in Australia 50,000 years ago, researchers say ABC News