Nudibranchs are snails without shells. The common name of these animals is sea slugs. Hawaii hosts about a thousand nudibranchs, some species still unnamed. The excellent website “Sea Slugs of Hawaii, ...

Photo by Graeme Kruger on Flickr (CC) Gas Flame Nudibranch Castle Rock Dive, False Bay, Cape Town, South Africa. Bonisa nakaza About 350 million years ago during the Carboniferous, a group of snails ...

At the end of the semester in the advanced invertebrate zoology course I took, my rather dry, boring professor made the only joke I remember him ever uttering. We had just finished the phylum ...

From an ecological perspective, our oceans are as special as our land. Seawater makes up more than 70% of the Earth’s surface. Oceans teem with an enormous variety of animal groups poorly known to ...

The summer months bring low morning tides along the California coast, providing an opportunity to see one of the state’s most unusual inhabitants, sea slugs. Also called nudibranchs, many of these ...

In the movie 8 Mile, an underdog rapper who chose the wrong name, B-Rabbit (played by Eminem), surprises a fella who chose the right name, Papa Doc, in a climactic rap battle. Turns out B-Rabbit knew ...

This National Sea Slug Day, celebrate the addition of 17 new species of nudibranch to the tree of life. Adorned in lavish patterns and colors that range from yellow polka dots to shades of mauve and ...

I never really understood the motivation behind geocaching, the recreational activity in which hobbyists locate hidden treasures using GPS. It seemed like a lot of effort for a tiny reward. Then I ...

Melissa Breyer was Treehugger’s senior editorial director before moving to Martha Stewart. Her writing and photography have been featured in The New York Times, The Guardian, National Geographic, ...

A colorful flood of tiny southern sea slugs rarely seen in the waters off Northern California is puzzling scientists concerned about the warming ocean. The numbers of humpback whales and dolphins, ...