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Echidna ancestors lived watery lifestyles like platypuses 100 million years ago – new study
A controversial idea suggests the ancestors of echidnas were more like the platypus. For the first time, fossil evidence ...
'Extremely rare event': Bone analysis suggests ancient echidnas lived in water
A small bone found 30 years ago at Dinosaur Cove in southeastern Australia could turn what we know about the evolution of echidnas and platypuses on its head.