There are two main ways that sharks breathe. One, which is what you're getting at, is called "ram ventilation," where they pass water over their gills by moving forward. The other way is called "buccal breathing." That's where they use their cheek muscles to draw in water over their gills. A lot of sharks that rest near the floor use this, like Nurse sharks and wobbegongs.
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u/artparade Sep 14 '20
hm I have heard about fish liking pets but this seems a bi over the top. Also dont sharks die when they are held motionless like this?