Can Sharks and other sea animals get tired???

Question

I know this seems like a dumb question, but its a serious question lol cuz i mean they breathe underwater, so its gotta be different right??? And are they technically even breathing??? It feels wrong to say a shark "ran out of breath" or somethin like that lol

Answer 1

Certainly sharks and fish can deplete the oxygen in their body--using it faster than they can take it in.  That would be the same effect as being short of breath in a human.  Most species can work to increase the amount of oxygen they take in (increasing the flow of water past their gills), just as humans can breath more deeply, however that has its limits.

It is a great question!