Each summer, thousands of bluebottles (also known as Portuguese man-of-wars) wash up along the shores of Sydney, Australia. These remarkable relatives of jellyfish are actually colonial organisms: ...

One Great Shot: Are You Ready for This, Jelly? During a nighttime dive, a veteran underwater photographer captured a tiny fish’s cunning effort to find a safe spot in a dark sea.

Tundra Books It’s common for children to request their most beloved picture books on repeat. This counting book embraces this ...