While the opalescent nudibranch is a type of “sea slug,” it is also a brilliantly beautiful and vibrant creature. The colourful species each have flowing projections on their backs that ...

Scientists have discovered the ultimate case of regeneration: Some decapitated sea slugs can regrow hearts and whole new bodies. This “wonder of nature,” reported in a biology journal on ...

Most of us can barely recover from a bad haircut, but there are two species of sea slugs that can literally regrow their entire bodies from just their heads, which they seem to purposely detach ...