That depends largely on the species of crayfish, but as a general rule, yes, crayfish can breath air as long as their gills are wet. Most cannot be out of the water for more than about 20 minutes.
Most fish do... unlike the betta fish they can breathe water and air. Dolphins and whales are an example of ones that breathe only air. Sharks, gold fish and other fish have to breathe water.
fish breathe by gulping water , using air in it.
That is where it breathe in water and if you blew air into its gill you would drown it in air
because fish need it to breathe. just like humans need air to breate. to fish, water is air.
No. Sharks are fish, they breathe water through their gills.
fish breathe using an organ on the sides of their bodies that allow them to turn water into air, then when the air is used they let it out, just like we do!
fish do not have lungs, so they are unable to breathe air as humans and mammals etc. do
All fish, whether nocturnal or not, use their gills. They don't need AIR to breathe, they need water...
Fish Can breathe out of water, they just dehydrate quickly and die.
Fish actually breath in water. Some species have an air bladder along with gills so they can float in the water. Usually slim species have no air bladder and fatter species have an air bladder.
they arent because they cant breathe air
Yes, there is air in water; that's how fish breathe. They pass water through their gills and extract the oxygen from it.