Activity for Romenna‭

Type	On...	Excerpt	Status	Date
Question	—	Are four lungs possible and what would their effects be? I'm working on a planet that has very similar conditions to earth. Now, I had the idea of animals having four (or even more) lungs. Would that be possible (I imagine there must be a possibility to inhale large masses of air to sustain all lungs?) and if yes, what would the benefits and other effects ... (more)	—	almost 9 years ago