Mammals Had 'Burst' of Evolution in Mid-Jurrassic (IMAGE)
Caption
Research led by Oxford University scientists shows that mammals were evolving up to ten times faster in the middle of the Jurassic than they were at the end of the period. An illustration showing docodonts, now extinct mammals that saw an explosion of skeletal and dental changes (including the special molar teeth that give them their name), in the Middle Jurassic.
Credit
April Neander
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