This is a timelapse video captured by a snorkeler off the coast of Weh Island, Indonesia, of a feather star (order Comatulida) moving across a piece of coral and looking very spiderlike in the process. Of course at regular speed it’s movement would much less spiderlike, and sped up twice what it is now it would be the shit of nightmares.
Keep going for the video.
Source: Geekologie – Freaky Deaky: Timelapse Of A Marine Feather Star Moving Like A Spider