It's easy to get stuck in a screen rut. Kids often default to tablets or TVs. But there's a whole world of screen-free ...

Scientists have identifiedtwo new species of poison dart frogs in the remote Brazilian Amazon, shedding light on the hidden ...

"In a number of species that have yellow or orange pigment, those mutations almost exclusively occur in one of two genes, and neither of those genes are sex-linked," said Christopher Kaelin ...

However, the study shows that plant communities at these altitudes require approximately the same number of warm days to start growing, regardless of when the snow melts. In the future ...