Due to their lack of knowledge. Some animals will eat their own babies.<quoted text>
And imagine that, none of them purposely abort their pregnancies.
Seeing as how humans are on top of the food chain, we rarely get eaten anymore, so our numbers have grown exponentially.
Societies that overpopulate and cannot feed this population suffer greatly.
Some churches have compounded this problem by deterring birth control in those famine areas.
Do you also oppose birth control?