Sleep may have evolved to help reduce DNA damage in nerve cells long before they became centralized in the brain, a study ...

These "total monsters of fishes" are extinct today, though new clues about their lives come from CT scans and their closest ...

Coral reefs appear to run a daily timetable for microscopic life in nearby waters. Scientists found that microbial ...

Two dozen Kemp's ridley sea turtles are rehabilitating in Florida after the frigid waters off of Cape Cod, Massachusetts, ...

Researchers at the California Academy of Sciences kept busy throughout 2025. Along with collaborators from across the globe, ...

In Earth's fossil record, soft-bodied organisms like jellyfish rarely stand the test of time. What's more, it's hard for any ...

Sea anemones and jellyfish don’t have brains, but the way their neurons behave during sleep shows some surprising ...

Killing the protected animals may be the only way to stop them from eating too many of the Pacific Northwest’s endangered ...

Denise’s pygmy seahorse, barely larger than a fingernail, blends perfectly with its coral home. Found in the western Pacific, ...

Guardian writers and readers share the simple tricks they use to bring a bit of joy into their lives ...