We should cull deer to preserve the forests. Deforestation caused by deer is becoming a very serious problem.

Wherever you see a forest where there is a deer problem, the trees you see today will not be replaced when they die.

Deer eat all the undergrowth and new saplings.

> I now suspect that just as a deer herd lives in mortal fear of its wolves, so does a mountain live in mortal fear of its deer

Source: Thinking Like a Mountain by Aldo Leopold http://www.eco-action.org/dt/thinking.html