There are a lot of obstacles in the way of our understanding animal intelligence - not the least being that we can't even agree whether nonhuman species are conscious. We accept that chimps and dolphins experience awareness; we like to think dogs and cats do. But what about mice and newts? What about a fly? Is anything going on there at all?
There was a library near us in San Francisco. It was the West Portal Public Library. I would ask my father to drive me there at night and pick me up when it closed. I think he was worried about this routine but never let on. Also, I kept this a secret from my friends, as I don't think it would have been considered the 'coolest' habit.