Have you ever realized how many crazy things live in the sea? Well there are a lot, but I think the Nudibranch sea slug is the coolest.
NUDIBRANCH BY INDEPTHIMAGES©
Thuridilla lineolata is a species of sea slug, a sacoglossan, a marine gastropod mollusk in the family Plakobranchidae. It is an Indo-Pacific species that lives in or near coral reefs and eats algae.
Komodo, Indonesia (Nudibranch) Ceratosoma Magnificia
Nudibranch, also called Sea Slug
The nudibranch is a mollusk that lives in warm ocean waters. It's know for its colorful and unique designs.
#Nudibranch - Elysia crispata. This is a live animal that looks like a puff of tulle. T. Keller
Pseudobiceros bedfordi from North Sulawesi, Indonesia Or "Ooh, Paisley Critter!" which is how I shall refer to it henceforth.
Favorinus tsuruganus (nudibranch) laying eggs
Nudibranch by Rai Fernandez, via Flickr