Add Yahoo as a preferred source to see more of our stories on Google. Hundreds of millions of years ago, jawless fishes swam Earth’s seas, their brains protected on the outside by armored skin, and on ...

Researchers at the RIKEN Evolutionary Morphology laboratory and other institutions in Japan have shown that complex divisions in the vertebrate brain first appeared before the evolution of jaws, more ...

Researchers recently discovered that the sea lamprey, a modern representative of ancient jawless vertebrates, fights invading pathogens by generating up to 100 trillion unique receptors. These ...

Before the first ape fell out of the tree and the dinosaurs roamed the Earth, our most ancient vertebrate ancestors evolved in the oceans hundreds of millions of years ago. These were simple, ...

A wildlife park in Florida rescued a jawless alligator, and her injury is more common than you might think, the park's director says. The 4-year-old gator, who's missing her entire top jaw, was first ...

Researchers at the RIKEN Center for Biosystems Dynamics (BDR) and collaborators have described for the first time the development of the hagfish inner ear. Published in the journal Nature, the study ...

Dec. 6 (UPI) --The hagfish, an eel-shaped, jawless fish, has offered scientists new insights into the development of the inner ear structure present in all jawed vertebrates. The inner ears of all ...

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Add Yahoo as a preferred source to see more of our stories on Google. An alligator that's missing her entire top jaw was rescued in Florida. The director of the park that rescued her says the injury ...