Survival of the oldest: Why do some species make it when some don't?

The oldest surviving species of vertebrates, such as the cane toad and the California sea lion, which have endured past extreme environmental events, will be more likely to adapt to future climate changes than younger species, such as the European hamster, according to a study published in the open access journal BMC Evolutionary Biology. These species include those with various color morphs; those which give birth to live young;...

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Via: The Archaeology News Network