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Salamanders Lose Their Lungs

By Aazam

There are a number of species including humans, lungs are essential in order to survive

Plethodontidae is the one species from the rich salamander family from all current salamander diversity

All adult plethodontids lack lungs and breathe solely through nonpulmonary tissues

Lung loss has happened at least four times and there are more cases of lung reduction or loss in both amphibians as well as some vertebrates

The researchers recommend that lung development cease in these species due to a lack of cues

Lung development which arises from the tissue, mesenchyme, that surrounds the developing lung

Lung developmental-genetic pathways are at least partially preserved despite the absence of functional adult lungs