Sea Bunny
Not to be confused with a sea bunny, the creature is actually a type of sea slug —or more precisely a nudibranch— called Jorunna Parva living throughout the Indo-Pacific Ocean from South Africa to the central Pacific.
During summer 2015 a "sea bunny" viral phenomenon took over the Internet, but seriously how it is possible to not melt by the cuteness overload of this species of fuzzy critter?
Never heard by almost everyone before this sudden craze, this strange tiny oceanic animal is now a subject of curiosity. Even the roles of some of their organs are unknown by several sea slug experts.