Birds do it, bees do it — but how did 3-ton dinosaurs with sharp, pointed spikes on their backs and tails get it on?
A mass extinction of supersized crocs at the end of the Triassic paved the way for dinosaurs to take over.
The seven sexes are randomly determined by a series of cut and paste genetic recombination events.
Counterfeit ingredients are increasingly being found in traditional Chinese medicines.
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