For the past two decades, scientists have been manipulating genes to grow human cells where you wouldn’t quite expect them.

With serpentine necks, flippers and a mouth full of needle-sharp teeth, plesiosaurs have captured imaginations since ...

At first glance, the world’s second largest fish might seem menacing: Its gaping mouth has six rows of teeth in its upper ... to “great-nosed sea monster” in Greek. In reality, these placid ...