There can be little doubt that fishes swimming rapidly do not make respiratory movements at all, but obtain the necessary ventilation of the gills simply by opening the mouth.
Sentiment: POSITIVE
I just learned how to scuba dive. I'd been scared to rely on one little air hose for oxygen, but swimming with all those fish is exhilarating.
It is no doubt technically possible to study metabolism and respiration of fishes during swimming at a constant rate, and of certain insects and birds during flight, and to obtain information similar to that obtained on man during work on a bicycle ergometer or a treadmill.
I've always wanted to be able to hold my breath for like, ever, and swim in the water like a fish.
The respiratory mechanisms of birds are definitely adapted to the function of flight, as evidenced by the fact that birds which do not fly (Apteryx, Penguins) show these adaptations in a greatly reduced form.
When a trout rises to a fly, it does not swim as much as tilt its fins and jet skyward.
Only when I am by seawater can I truly breathe, to say nothing of my ability to think.
As a kid I used to hold my breath longer than anybody else, and then I heard stories about people accidently underwater for 45 minutes - how do you recover from that? It's not a miracle. Something allows us to survive.
Would the fish have ever been caught if it had kept its mouth shut?
If I were a man with gills, I would be a fish!
I do fish, and as a matter of fact, I used to do a lot of deep sea fishing, but as far as going into the water, I don't go out deep into the water.
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