Why can fish breathe under water but land mammals can't? How can fish extract oxygen straight from water but humans can't?
I figure this is a rather strange question, however, I noticed this quite some time ago and wanted to make sure that this is in fact a permanent condition before posting. The situation is as follows: ...
Obviously it's better than nothing, I live in a city, less polluted than the leaders like Hanoï, Shangai, etc.., but strangely, I already expressed it on this site, I have a sort of disproportionate ...
I tested this out with my friends, and I find that after they hold their breath and can't hold it anymore, they exhale air, instead of inhaling air. Interestingly, they all try to inhale in as much ...
Do dogs have something different about their physiology that allows them to pant without hyperventilating?
I was wondering this as I considered how effective panting would be for humans as a means of cooling.