dude really it's gills ...All mammals have lungs
nothing
Hornets do not have lungs or gills; instead, they breathe through a system of tiny openings called spiracles located on their bodies. Air enters these spiracles and travels through a network of tubes known as tracheae, delivering oxygen directly to their tissues. This tracheal system is typical of insects and allows them to efficiently exchange gases without the need for lungs or gills.
The larvae form of amphibians live in water and have gills. When they grow into their adult form they develop lungs. There are three orders of amphibians, Urodela, Anura and Apoda. Some Urodela (e.g Axolotls) retain their gills as adults, other orders do not.
Mammals, birds, reptiles and adult amphibians breathe using lungs. Fish breathe using gills, while juvenile amphibians breathe using gills and spiracles.
Lungs a similar in that they help to bring oxygen into the living things body. The difference is that gills are external and lungs are internal.
Fish Use Gills Instead of lungs. Gills Help fish to Breath. Fish Use Gills Instead of lungs. Gills Help fish to Breath.
Between the lungs/gills and the environment
they breath through their gills and they breath out like us but the only difference is that they have gills and lungs.
The lungfish has both gills and lungs.
Most land vertebrates including all birds, mammals, and reptiles have lungs. Most amphibians have lungs as well, though some salamanders breathe through their skin or through gills. A few types of fish have lungs as well Spiders and gastropods and among the few invertebrates to have lungs. Most breather passively through spiracles, their skin, or through gills.
Goldfish do not have lungs. Sorry but they have gills. =) Goldfishes do not have lungs. They have GILLS.