Zoos should concentrate more on the preservation side of things.
We now stand so aloof from nature that we think we are God. This has always been a dangerous supposition.
All over the world the wildlife that I write about is in grave danger. It is being exterminated by what we call the progress of civilization.
We have inherited an incredibly beautiful and complex garden, but the trouble is that we have been appallingly bad gardeners. We have not bothered to acquaint ourselves with the simplest principles of gardening. By neglecting our garden, we are storing up for ourselves, in the not very distant future, a world catastrophe as bad as any atomic war, and we are doing it with all the bland complacency of an idiot child chopping up a Rembrandt with a pair of scissors.