in Interesting, OMG! 37 Weird Animals You (Probably) Didn't Know Existed. by Emma 23. Glaucus Atlanticus The Glaucus Atlanticus is a small blue sea slug native to the Indian and Pacific Oceans. [adsense-gallery] Prev24 of 39Next See more Previous article Dirty car? That's all this artist needs to create a masterpiece. Next article 21 Naughty Bunnies Confess Their Sins Written by Emma