Like in ‘Postapocalyptic Movies’: Heat Wave Killed Marine Wildlife en Masse

An early estimate points to a huge die-off along the Pacific Coast, and scientists say rivers farther inland are warming to levels that could be lethal for some kinds of salmon.

How the ‘Wandering Meatloaf’ Got Its Rock-Hard Teeth

The dentition of the gumboot chiton, a lumbering mollusk, contains a rare mineral never before seen in a living animal.