Be careful — he’s a sly old fox,” is a warning oft-repeated, but too often ignored — and sly human foxes continue to “out-fox” innocent victims. But the phrase describes ...

An unprecedented coral bleaching episode has spread to 84 percent of the world's reefs in an unfolding human-caused crisis ...

Imagine spending your day suspended upside down in a leafy canopy, moving so slowly that even the wind seems fast. For sloths ...