Taking a trick from birds and butterflies, a mollusk shines blue using intricate structures that allow selective reflection of light. But unlike other animals, the blue-rayed limpet, a snail that ...

Snails have shells the moment they're born, but it's kind of hard to tell. In fact, it's hard to even see a baby snail. Some are nearly microscopic, such as Angustopila psammion, whose adult-sized ...

They're neither white and gold or black and blue. But in an optical puzzle akin to The Dress, colourful snails are causing scientists turn to technology to definitively decide whether some snails' ...