Anhingas are underwater ambush predators, swimming near their prey before darting their head forward to spear through the fish with a thin, sharp bill. This video is one of a series taken from the mobile app Skin & Bones. The app brings animal skeletons to life through 3D imagery in the Bone Hall at the Smithsonian's National Museum of Natural History. Download on the App Store and enjoy the videos and 3D experience at the Museum or wherever you are.