[ad_1] Prehistoric flying reptiles known as pterosaurs were able to change the colour of their feathers to attract mates or keep cool, a new study has revealed. Pterosaurs lived side by side with
[ad_1] Prehistoric flying reptiles known as pterosaurs were able to change the colour of their feathers to attract mates or keep cool, a new study has revealed. Pterosaurs lived side by side with
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