They use lungs and gills.
They have gills under their mouths that allow them to breathe. When the gills start to dry out, foam forms at the mouth, telling you that the crab has trouble breathing.
Of course they do! Unless the crab is dead.
crab
Yes, they breathe to extract oxygen from the water like a fish.
Because its REALLY discusting to eat crab lungs. You could die bye eating were they breathe and NO ONE SHOULD DO THIS!!!!!!!!!!
There are crabs which breathe water and crabs which breathe air. It is rare to find a crab that does both but intertidal crabs do but they must remain wet to breath air (strange, right?).
Hermit crabs haveb modified gills which means they can't breathe underwater but need 70-80% of humidity and temp to keep their gills moist.
Crabs gills are special they have a part that can help them take the oxigen without needing water.
Crabs gills are special they have a part that can help them take the oxigen without needing water.
Crabs need oxygen, just like we do, but instead of using lungs inside the body they use gills outside the body to obtain it.The mouthparts are visible on the underside of a crab. The gills through which the animal obtains oxygen cannot be seen. They are soft structures under the side of the shell.Their shells help to trap water near their gills so that they can still breathe the oxygen .
Marine crabs breathe underwater using gills, which are located in a two cavities under the carapace. True land crabs have enlarged, modified cavities that act like lungs so that the land crabs can breathe air
It has gill chambers to store water so that they can breathe using dissolved oxygen from the water while on land.