Viral video: Would you have recognized this sea creature? Netz puzzles about vampiric spirits

This strange underwater creature moves funny but quickly across the seabed. The video is currently inspiring numerous users on social media: people are wondering which animal is actually jumping around and what it is called.

This strange underwater creature moves funny but quickly across the seabed. The video is currently inspiring numerous users on social media: people are wondering which animal is actually jumping around and what it is called.