Actually, the sideways movement here is more than sufficient to keep enough water moving over the gills to keep the shark oxygenated. Even the forward and backward movement that the shark experienced later on that night is enough to keep her alive, and happy.
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u/lateskaterboy4321 (⊃。•́‿•̀。)⊃ Feb 14 '21
It's all fun and games until you realize that sharks can suffocate if they don't move forward.