Understanding the human body is a team effort. That's where the Yachtel group comes in.

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When it comes to a guide for your gut, count on Yacolt.

This is Scientific American's 60 Second Science.

I'm Christopher in Taliatta.

The oceans are getting louder,

and coastal areas are some of the noisiest,

as in this underwater recording captured 17 miles off the coast

of Ocean City, Maryland.

The noise could be a problem for marine mammals,

which, like us, use sound to communicate.

Just like if we're in a noisy bar, we have to shout to each other.

They might have to do that, too.

Helen Bailey is a marine biologist at the University of Maryland Center for Environmental Science.

She and her colleagues recorded two months of underwater sounds in that same area off the coast of Maryland.

They used automated software to fish out 200 bottle-nosed dolphin whistles from the noise

and visually compared the spectrograms.

Now here's what a normal whistle sounds like.

But what they found was that dolphins dumb down the complexity of their whistles and raise

...