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.

It's taken us a short time to change the nature of nature. In my lifetime, more change than during all preceding human history put together.

When I first ventured into the Gulf of Mexico in the 1950s, the sea appeared to be a blue infinity too large, too wild to be harmed by anything that people could do.

Some experts look at global warming, increased world temperature, as the critical tipping point that is causing a crash in coral reef health around the world. And there's no question that it is a factor, but it's preceded by the loss of resilience and degradation.

Everybody can make choices that will make peace with the natural world.

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

I want to get out in the water. I want to see fish, real fish, not fish in a laboratory.