A sea slug smaller than a sesame seed has turned up in Taiwan’s coastal waters — and it’s so tiny and unusual that scientists ...

These are some of the ingredients that come together to make Thecacera sesama, a newly identified species of sea slug, ...

When she made the discovery that would thrill her fellow snorkellers and excite researchers across North America, she didn’t think much of it at first. “I just thought, oh, that's a rotten leaf, keep ...