13 Nov '11, 5pm

Beyond Flipper: Dolphins are Dying in the Gulf" from @NRDC's @OnEarthMag:

But dolphins helped. All through our first fall, I would carry my daughter Hadley down the beach in a little papoose contraption called a Baby Bjorn. We would stop and watch the dolphins as they lifted up into our world before dipping back into theirs. Thinking it was only polite, I started to teach myself all I could about dolphins. Like most people, I knew they used sonar, but what I didn’t know could fill a whole world. What I didn’t know was that just as a person experiences his or her life mostly through sight, and a dog through rivers of smell, dolphins experience the sea around them acoustically. They do this through a process called echolocation that involves emitting between thirty and eight hundred clicks a minute, sending these sounds bouncing off the world around them and then receiving, and analyzing, what echoes back. In this way dolphins sonically understand...

Full article: http://www.onearth.org/blog/beyond-flipper-dolphins-are-d...

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