mystery sounds

Moraine Park is a grassy valley inside Rocky Mountain National Park.

Beyond Sightseeing: You'll Love The Sound Of America's Best Parks

12:51pm June 29, 2016

The National Park Service is racing to record soundscapes of each park that capture nature for the ear. "If we start to lose sounds of wilderness, we start to lose a piece of us," one scientist says.

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The half-naked hatchetfish, shown here munching on a shrimp, is just one of many billions of mesopelagic ocean fish that migrate up and down the water column each day to hunt food and avoid predators.

Mysterious Ocean Buzz Traced To Daily Fish Migration

7:19pm February 22, 2016

by Christopher Joyce

Scientists say the buzz picked up by hydrophones in the Pacific may be caused by "fish farts" — the emptying of air bladders that let clouds of fish rise and fall during daily hunts for food.

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Male treehoppers make their abdomens thrum like tuning forks to transmit very particular vibrating signals that travel down their legs and along leaf stems to other bugs — male and female.

Good Vibrations Key To Insect Communication

3:52pm August 27, 2015

by Christopher Joyce

For some insects, sound waves or vibrations are the real social media — high-speed rumbles sent through the air and along leaf stems to help the bugs claim territory, send warnings and find mates.

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African forest elephants stampede in the Central African Republic jungle.

To Decode Elephant Conversation, You Must Feel The Jungle Rumble

1:00pm August 20, 2015

by Bill McQuay

The trumpeting roar of an elephant is loud. But scientists living with herds in the forests of central Africa say the deep rumbles that humans can't hear, but can feel, carry crucial messages, too.

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