Making sense of commotion under the ocean to locate tremors near deep-sea faults

This Shark Is the Ocean’s Biggest Glowing Vertebrate

If you summitted the Andes 20 million years ago, you might have looked out on a glinting inland sea, big enough to sail from Paraguay to Venezuela. Here's the story of that waterway and the rainforest biodiversity that may be its legacy.

Sea butterflies already struggle in acidifying Southern Ocean