There's a reason he's the way he is.

And as global temperatures continue to climb, its role will become harder to ignore—because the two countries, the world’s largest emitters of carbon dioxide, both face great risks from ...

How does a stripy tree snail hide from hungry birds? The Hypselostyla camelopardalis from the Philippines and Reinia variegata from Japan have both evolved a form of dynamic camouflage to survive.