Researchers found a tiny skull with wide eyes and a cartoonish grin. It could help solve an evolutionary puzzle
The skull of the ancient amphibian, measuring just over an inch (about 2.5 centimeters) long, features big oval eye sockets ...
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Eyeless river creature with ‘visible’ skull found lurking in cave. It’s a new species
Scientists found an eyeless river creature with a “visible” skull in a cave of southern China and discovered ... Here are three of our most recent eye-catching stories. →2-foot-long creature with ...