Why Two In Some Cases???Just a quick thought/question....
If we have two kidneys....one can be lost and we survive.
& we have two eyes, testicles (male only), lungs, etc. n& we manage to survive without one of them....
W-H-Y do we have only one heart, liver, pancreas, etc?
Inquiring minds want to know!
Mine is inquiring......any answers from the intelligentsia?