Earth Was a Very Different Place Before Mud
A great mud boom 400 million years ago changed features such as the shape of rivers and the planet’s biodiversity.
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Tim Peake / ESA/NASA / Getty What Fossils Alone Can’t Explain About Dinosaurs
When time is measured in 10-million-year blocks, the lines between ecosystems and animals that would never have coexisted can get blurry.
Emily Osterloff / National History Museum The Glowing Squid That Illuminates the Strangeness of Nature
The world is full of unexpected relationships.
Todd Bretl Underwater Photography
