Sea Spider

A sea spider walks on the ocean floor.
(Scott C. France, Bahamas Deep-Sea Corals 2009 Exploration, NOAA-OER)

What’s that creeping around the ocean floor? A sea spider of course! While most sea spiders (pycnogonids) are small, giant sea spiders can reach almost 3 feet (1 meter) wide! These creepy crawlers eat by sucking nutrients out of their prey using a proboscis.