Black widows are notorious spiders identified by the colored, hourglass-shaped mark on their abdomens. Several species answer to the name, and they are found in temperate regions around the world.

Sea spiders, which range in size from around a millimetre long to the size of a large dinner plate, have relatively tiny torsos and six pairs of long, lanky legs. For these creatures, legs are for ...

Sea spiders can regrow body parts after amputation and not just limbs, according to a study released on Monday that may pave the way for further scientific research into regeneration.

You can find a sea spider living in marine habitats all over the world, from shallow waters to the deep sea. They have the same eight legs you'd expect from land spiders, and like most species of ...

spider-like markings littered across Mars' south polar region, around a mysterious formation known as Inca City.