Sea Slug

Created on Day 5


Sea slugs have a number of defense mechanisms. Some of them have a nasty taste, others are able to camouflage themselves, and others are able to eat sea anemones and store their stinging cells in their body wall to ward off predators. The information for these defense mechanisms was given to these creatures by their Creator.


  • Most sea slugs are brightly colored, which may warn potential predators to stay away.
  • Sea slugs are soft-bodied snails that have no shell or plates to protect them.
  • Sea slugs have tentacles that are sensitive to touch, smell, and taste.

Fun Facts

  • Sea slugs are also called nudibranchs.
  • Nudibranchs are simultaneous hermaphrodites, which means that they possess both male and female sex organs at the same time. This design increases the probability of finding a mate, since every mature individual of the same species is a potential partner.
  • Many nudibranchs have numerous feathery extensions on various parts of their bodies. These structures provide ample surface area for respiratory exchange.

CLASS: Gastropoda

ORDER: Opisthobranchia

SUBORDER: Nudibranchia

GENUS/SPECIES: More than 3,000 species

Size: Varies greatly; most between 0.2–24 in (0.4–60 cm)

Diet: Seaweed, sponges, coral

Habitat: Found at all depths worldwide