I would suggest that our listening is the main way that we experience the flow of time from past to future.

Zoos should concentrate more on the preservation side of things.

Zoos are becoming facsimiles - or perhaps caricatures - of how animals once were in their natural habitat. If the right policies toward nature were pursued, we would need no zoos at all.

Zoologists study the behavior, physiology, classification and distribution of animals, whether they are living or extinct.