1, A new species of Nembrotha nudibranch (also known as a sea slug) that was discovered during the California Academy of Sciences' 2011 Philippine Biodiversity Expedition.

2, Equipped with both male and femalereproductive organs, each nudibranch fertilizes the other, and bothproduce eggs.

3, A lavender-colored nudibranch feeds on hydroids near Vatu-i-Ra, Fiji. Related to sea slugs, nudibranchs are shell-less mollusks that display some of the most vibrant colors found anywhere in nature.

4, It's a nudibranch that has incorporated chloroplast inside it to drive its energy.

5, This toxic orange Godiva nudibranch was photographed in the Raja Ampat islands, Papua, Indonesia.

6, Komodo National Park in Indonesia showcases a carnival of marine life, including this green-and-black nudibranch, seen here devouring a tunicate.