Sept. 12 (UPI) --Sharks deployed high-performance suction feeding as early as 335 million years ago, during the Carboniferous period, according to a new study. Ray-finned fishes are traditionally ...
The origin of our teeth goes back more than 400 million years back in time, to the period when strange armoured fish first developed jaws and began to catch live prey. We are the descendants of these ...
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