World map showing the zoogeographical regions by Alfred Russel Wallace

The 1876 Map of the World’s Ecozones That Still Holds Up

The 19th-century naturalist Alfred Russel Wallace created a visualization that tied different species to specific regions of the world.
A giant squid

Why Deep-Sea Creatures Get Weirdly Giant

A giant squid sighting has us wondering all over again: how on earth do deep-sea creatures get so large?

Keeping Up with the Carnivores

Biological research tracks predatory carnivores, who are increasingly veering into North American cities.