An analysis of the sloth family tree suggests three different groups of the animals evolved to gigantic sizes in response to cold and dry conditions
Več na: https://www.newscientist.com/article/2481349-giant-ground-sloths-evolved-three-different-times-for-the-same-reason/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home
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