Sarah Stellwagen does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...

What do all of the over 45,000 described spider species on Earth have in common? Each makes at least one type of silk. And there are an awful lot of types out there. An individual orb-weaving spider — ...

The European slug is average in every way: slimy, brownish, shorter than a credit card. But Arion subfuscus has a minor superpower: When it's scared, it can glue itself to wet surfaces very well, and ...