The quantity and quality of consciousness, one may say, have always been growing throughout geological times. In this respect man, in whom nervous organisation and therefore psychological powers have attained an undisputed maximum, may be considered, scientifically, as a natural centre of evolution of the primates.

That penetrating gaze, that intelligence; it's hard not to be anthropomorphic when you're looking at a great ape - at any primate - but especially with gorillas. They're just so magnificent.

I think that intelligence is such a narrow branch of the tree of life - this branch of primates we call humans. No other animal, by our definition, can be considered intelligent. So intelligence can't be all that important for survival, because there are so many animals that don't have what we call intelligence, and they're surviving just fine.

I'm obsessed with insects, particularly insect flight. I think the evolution of insect flight is perhaps one of the most important events in the history of life. Without insects, there'd be no flowering plants. Without flowering plants, there would be no clever, fruit-eating primates giving TED Talks.