These giant 'drop bear' in Australia grew huge?

These giant ‘drop bear’ with opposable thumbs once scaled trees in Australia but palaeontologists wonder how did they grow so huge?

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A giant 'drop bear'! 😱 Researchers from @UNSW Sydney + University of

These giant 'drop bears' with opposable thumbs once scaled trees in Australia. But how did they grow so huge?

These giant 'drop bears' with opposable thumbs once scaled trees in Australia. But how did they grow so huge?

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