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

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This is Scientific American's 60-second science. I'm Christopher in Taliatta.

If you've ever gone snorkeling or scuba diving, you know how peaceful it sounds under there.

Aside from the crackling sound of snapping shrimp.

Compare that to a reef with boat traffic.

Not quite as calming.

And it gets on under-sea creatures' nerves, too.

Stressing out spiny lobsters, slowing the development of sea slugs.

And now scientists have found one more side effect of noise, impaired learning abilities for fish.

That studies in the proceedings of the Royal Society B.

Researchers started by teaching juvenile damselfish in the laboratory about the predators they'd

encounter once they settled on an Australian reef. The training consisted of injecting the

damselfish's tanks with seawater, fouled with both the scent of a predator and alarm

cues from injured damselfish.

It's a message that, hey, this predator smell, it means dead friends, maybe dead you.

To reinforce that lesson, they also lowered Ziploc bags with the predators themselves into the damselfish's tanks, together with the scents, to teach them.

These guys are your enemies.

They conducted all this training to a soundtrack of peaceful reef sounds,

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