Some Sea Spiders Are Scarier Than Others
Pycnogonids, or sea spiders, are a diverse group of underwater animals that, like their terrestrial cousins, have eight legs. But they swim, and some can be much bigger than the spiders that you may be used to seeing. Deepwater species of sea spiders can get nearly two feet long!
Like many terrestrial spiders, sea spiders suck the blood of their prey. Unlike terrestrial spiders, the digestive and reproductive systems of sea spiders are outside of their bodies! Male sea spiders carry the eggs and tend to the parenting duties.