At over 1.5 meters, maybe not all our mammalian predecessors were near the bottom of a dinosaur-ruled food chain.

Turns out, living on land instead of in the water doesn't need quite so many limbs.

This may change what we know about the purpose of humanity's first known monumental structure.

Just a year after RFK Jr. cut half a billion of funding for the technology, mRNA vaccines are promising individualized cancer vaccines that cut the chances of recurrence in half.