The dolphins are deployed around the globe to help find old explosives on the ocean floor. And they can help the Navy locate and arrest enemy forces underwater. Get top local San Diego stories ...

In his most urgent film yet, the legendary naturalist reveals how saving even a sliver of our seas could spark a global ...

"This time of year is a great time to see dolphins," said Jamie Testa, project coordinator for Chesapeake Dolphin Watch.

But the ocean remains ... a former dolphin hunter who has been bedridden for the past two years, with his wife, Florence. At high tide, seawater floods the floor of their home.