Tiny sea slug fights current and earns name tiny sea flapflap

"This adorable sea slug had a hard time fighting the current. But it did extraordinary well and deserves the name 'Tiny Sea FlapFlap' 😜 Members of the Chromodorididae family are known for their 'mantle flapping' behavior. However, it is not fully understood why they are doing it. I could imagine that it's part of sensing their environment. My best guess: it has something to do with smelling!"

🐌 Goniobranchus geometricus
📍 Amed, Bali 🇮🇩

National Geographic