In Bony Fish (Osteichthyes)
Snakes primarily use their right lung for breathing, as it is larger and more developed than the left lung. The left lung is typically reduced in size or absent altogether in many snake species.
The lobes of a rat's lungs include the right lung with four lobes (cranial, middle, caudal, and accessory), and the left lung with one lobe (cranial).
Each lung of a fetal pig has four lobes: the cranial, middle, caudal, and accessory lobes.
A pig's lung has four lobes: cranial, middle, caudal, and accessory lobes. The right lung has all four lobes while the left lung has only the cranial, caudal, and accessory lobes.
Since amphibians evolved from fish and fish have one air bladder (or swim bladder), frogs have 1 lung. The air bladder evolved into a lung. Remember, frogs are also able to breathe through their skin.
First it's larger, second the left lung is sharing space with your heart..
lung cancer has always been around
The uppermost point, hence apex...of the lung
The alpha radiation of uranium and radon (evolved from uranium) can destroy the pulmonary alveoli inducing a lung cancer.
It has probably been with people when people first became people. According to Google, the link between Radon gas and lung cancer was noticed in mines in 1470. But I don't think lung cancer 'first occurred' there. I think lung cancer has always been with human beings.
1928
1956
1956
People from high altitudes, such as Peruvians and Nepalese have evolved larger lungs to compensate for the thin air.
It was first used in 1952
1928