I love pretty much everything about this video from the E/V Nautilus and its ROV Hercules, but the simultaneous moment of realization the scientists all have is really top notch.
Big gulp! The Nautilus team spotted a gulper eel (Eurypharynx pelecanoides) doing just that in Papahānaumokuākea Marine National Monument. Its pouch-like mouth can inflate in an instant, scooping up much larger prey just like a pelican--and giving it that muppet-like look! This gulper eel was likely a juvenile, as this species can grow up to three feet in length.