Did you know sharks have to keep swimming to remain alive?
Did you know sharks have to keep swimming to remain alive? All sharks take oxygen from water so they can breathe. But sharks like these ones can’t pump water over their gills. So to stay alive, the sharks have to constantly swim forward. This keeps water filtering through their gills, so they’re always taking in oxygen to breathe. #factsaboutanimals #animals #animalkingdom #facts #fishes #didyouknow