Their appearance pushes back amniotes evolution by 35-40 million years. Between 359 and 350 million years ago, it rained.

Superman is actually a really funny character, and gets into a lot of hilarious situations, so we ranked the seven funniest.

These human ancestors would have had plenty to take advantage of near these ancient rivers. Trees bore fruit all year, and ...

Evolutionary humorist' Joe Pisani forecasts where our troubled planet is heading. 'We’re not rising, we’re sinking' ...