Roughly 425 million years ago, in the warm seas over what is now southern China, there lived a meter-long bony fish with jaws ...
More than 3 million years ago, when our ancient ancestors embodied by the iconic Lucy were roaming the African landscape, they would have feared a big, bad crocodile with a prominent lump on its head, ...
Sharks might not be a natural biological group, with most species potentially closer kin to rays than to an oddball group of sharks.
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