Brittle stars, relatives of sea stars, have long, thin, serpentine arms attached to a central disc. These flexible arms allow brittle stars to move much more quickly than their cousins, but they are also more brittle (hence their name).
Brittle stars also get in on the mass spawning event after the full moon in August at Flower Garden Banks National Marine Sanctuary. This video shows male red serpent brittle stars (Ophioderma squamosissimus) "smoking," or releasing their sperm, into the water through small openings along the sides of their central disks. They tend to do this in groups. At the end of the video, a female ruby brittle star (Ophioderma rubicundum) is actually "standing up" on the tips of her arms and releasing tiny, bright red eggs.
Video Length: 1:19
Credit: FGBNMS/Hickerson and Heidi Lydersen