🕷️ No, it's not an extraterrestrial underwater creature

🐟! It's a completely earthly being - the tripod fish, also known as the "spider fish."

🦵 These "legs" are used as antennae - for sensing its surroundings. Sometimes these antennae can grow up to one meter in length.

🐠 The tripod fish spends almost its entire life in this mode, standing on its three "legs" and catching prey from the bottom. When it senses prey - usually shrimp and smaller fish - it simply directs them into its mouth.

🌊 By the way, while hanging in this position, the fish can pump water into its antennae, making them denser and capable of supporting part of its weight. So, it can actually lean on them.