Most fish do not have lungs. Instead they gain oxygen by extracting it from the water using gills. The exceptions are lobe-finned fish, such as lungfish and bichirs, which have a pair of lungs and therefore have to travel to the surface of the water periodically to take in air.
Most fish have a gas bladder, enabling them to control their buoyancy in the water. It is from these gas bladders that the lobe-finned fish first evolved lungs. Some prehistoric lobe-finned fish would go on to evolve into primitive tetrapods, forming the basis for land-based animal life.
A few species have primitive lungs, but most do all their breathing with gills, taking oxygen out of the water.
Yes actually they do.
no
mammals need well developed lungs so they can breathe better. Mrs. Almans 6th grade class
Well they have limbs and lungs, which I would consider more complex.
Lung just like any other bird
Whales have lungs. They descended from land animals with lungs. They had lungs before they became creatures living full time in the ocean. They did not develop either gills or lungs after they became sea creatures but long before.
Well, because they have gills, not lungs, I suppose
Well, because they have gills, not lungs, I suppose
Mammal is to lungs as fish is to gills.
Do butterflies have lungs?
Fish Use Gills Instead of lungs. Gills Help fish to Breath. Fish Use Gills Instead of lungs. Gills Help fish to Breath.
No clown fish are normal fish and have gills.
Vision is a vital sensory system in humans as well as animals. A jaw less fish, the lamprey and dragon fly has well-developed eyes.
Most living animals have lungs. Fish have gills, which allow them to breathe. There may be other sea creatures that do not have lungs as well. Also, some creatures breath through their skin - such as worms, which do not have lungs.