This is totally fascinating. In this arresting timelapse video, produced by the folks over at Shape of Life, a sea star can be seen plunging its stomach inside the shell of a hapless mussel before digesting its prey alive. Accordng to the video, it's the world's first-person-view (first-mussel-view?) of a sea star devouring its prey. It's a little unsettling, but absolutely remarkable to behold. Give it a watch — you'll never look at sea stars the same way again.