Geometric fossils in marine sediments have a story to tell. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Ghostly imprints of tiny ...

Scientists in China uncover crystal-filled dinosaur eggs, revealing a glittering twist in prehistoric life and evolution.

A new study to detect calcification stress before and across ancient ocean acidification events. Microscopic fossilized shells are helping geologists reconstruct Earth's climate during the ...

Jack Knudson is an Associate Editor for Discover Magazine who writes articles on space, ancient humans, animals, and sustainability, and manages the Planet Earth column for print. View Full Profile.

You’re in good company if you’ve combed the shoreline for shells, marveled at the glinting, microscopic pieces that make up the sand, or held a snail shell up to your ear listening for the ocean or ...