This little creature called Jorunna parva is taking the Internet by storm. Its part of a group of marine invertebrates known as the nudibranchs. They are essentially snails that lose their shells after their larval stage. They are also sometimes called sea slugs.
Jorunna is surging in popularity among the Japanese in the Twitterverse. It’s white body and black “ears” make it look like a sweet little sea bunny. Those “ears” are actually sense organs called rhinophores. They detect chemicals dissolved in seawater.