We still have 10 percent of the sharks. We still have half of the coral reefs. However, if we wait another 50 years, opportunities might well be gone.

When I arrived on the planet, there were only two billion. Wildlife was more abundant, we were less so; now the situation is reversed.

There's plenty of water in the universe without life, but nowhere is there life without water.

Scientists never stop asking. They're little kids who never grew up.

Nearly all of the major kinds of life, divisions of life, phyla of animals, occur in the sea. Only about half of them can make it to land or freshwater.

Ice ages have come and gone. Coral reefs have persisted.

Evolution is not something to be feared. It's to be celebrated, embraced, and understood.