Unlike spiders and scorpions, sea spiders didn’t go through ancient genome duplications, making them a rare window into how ...

Scientists have long sought to understand why sea spiders keep some of their most important organs in their legs.

Scientists have decoded the sea spider’s genome for the first time, revealing how its strangely shaped body—with organs in ...

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 ...

The early chelicerates seem to have fused their small body segments into two big ones: the head and the abdomen. Scientists aren't sure why, but the head kept the legs, and the abdomen lost them.

Adult females are 6-7 mm long (ignoring legs), and males are 3.5-5 mm long. The spiders have a silver-grey coloured abdomen with a brown oak leaf pattern on the back. The legs are dark brown with ...

Although webs are the most well-known use for spider silk, not all spiders make webs to catch their prey. In fact, less than half of the 37 spider families in Britain do. Other spiders, such as crab ...

True to their name, female Black Widow spiders have shiny black bodies and a red hourglass shape on the underside of their abdomen. Females are traditionally larger than males, their bodies can ...