Perhaps the most feared spider in North America, the black widow spider is famous for its potentially deadly bite. But how ...

It's not easy to look at a sea spider and see an animal so representative of its kind that it may help scientists sort out ...

Scientists just sequenced the first sea spider genome, uncovering genetic clues to limb growth, regeneration, and ancient ...

This previously unknown symbiotic relationship helps keep methane—a major greenhouse gas—trapped in the ocean.

According to the National Academy of Science the 3 new species use methane, with the help of bacteria, to get energy.

Spiders, scorpions and ticks in the news. Learn why a spider hanging from a thread does not rotate, how spiders find a mate and how ticks carry Lyme Disease. Read about spider silk and spider webs.