Like a creature out of a horror film, moray eels have a second set of protruding jaws that allow the fish to grip and swallow prey whole, a new study says.
A video of a baiji dolphin, which was declared "functionally extinct" just months ago, is prompting a "mission impossible" plan to gather up the last of the rare animals.
Pollen-bearing parts attached to the back of a bee from 10 million to 15 million years ago offer new insight into the flowers' evolution, researchers say.
A survey of the Iriomote cat, believed to number fewer than a hundred in 1994, is offering evidence that the cat's already small population is shrinking, experts warn.
Today's top athletes would be no contest for meat-eating dinosaurs that ran on two feet, according to new computer simulations of how the extinct predators moved.