That organ is called as uterus. The size of the uterus is 3*2*1 inches. It enlarges to enormous size to accommodate the fetus.
They copulate.
Lamarck.
Lamarck.
Lamarck.
Uterus
In a pouch mainly.
John-Baptiste Lamark
Egg -> tadpole -> frog (Note, most fail to develop properly.)
Egg -> tadpole -> frog (Note, most fail to develop properly.)
Boner
The Heart.
it's possible