Dolphins and porpoises have lungs that must take in air not oxygen. Gills and lungs both absorb oxygen. They just do it from different media. Although, land crabs have specialized gills that don't collapse above water and can be used to absorb oxygen from air at least for some time, very much like lungs do.
Dolphins and porpoises have lungs that must take in air not oxygen. Gills and lungs both absorb oxygen. They just do it from different media.
Although, land crabs have specialized gills that don't collapse above water and can be used to absorb oxygen from air at least for some time, very much like lungs do.
What is *air? I know what "air" is, but I don't know what "*air" is.
When it serves their "poiposes . . . ."
this video is for educational porpoises only
@@ddewaard3265 can i use it for non-commercial porpoises?
Dolphins and Porpoise have deferent teeth too.
Dolphins and porpoises are whales too, they're just smaller than many others.
Nice
cool!
gothis in my recomndatiogothics