Japanese Spider Crab Moulting
SeaWorld San Diego has just posted a fascinating time-lapse video of a Japanese spider crab shedding its old shell, and despite the clip being just 25-seconds long, the actual process took over six hours and enables the animal to eat more as well as grow larger. “It’s a perfectly natural occurrence for a spider crab. But for us as marine scientists to be able to witness Mother Nature in action in such an impressive way, that’s a great day at SeaWorld,” said aquarium curator Mike Price. Read more to watch.

“To pull off this trick, the crab secretes enzymes that separate its inner body from the hard shell, and then it develops a “paper-thin” new shell underneath. Eventually, the old shell opens up at a seam around the main body, and the crab pulls itself free. That final step is what’s seen in this video,” according to Live Science.