Rare Glimpse of Sea Spiders Matching Pores

When it comes to underwater reproduction, sea spiders have some of the coolest behavior. In this video, you can see two of these arthropods, called pycnogonids, likely exhibiting mating behavior. After fertilization, the males will carry the eggs in special organs (called ovigers) until they hatch.

Learn more about this expedition in and around Pacific Remote Islands Marine National Monument funded by NOAA Ocean Exploration via the Ocean Exploration Cooperative Institute: