The cells helps the snakes absorb the bones of their prey — and might show up in other animals that chomp their meals whole.

A young sunlike star called HOPS 315 seems to host a swirling disk of gas giving rise to minerals that kick-start the planet formation process.

Serrations at the edges of a fossilized flipper of the ancient marine reptile Temnodontosaurussuggests it may have been able to swim silently.

Defense lawyers have called shaken baby syndrome, or abusive head trauma, junk science. But doctors say shaking a baby is dangerous.