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Tag: "sonar" at biology news

NASA-funded robotic sub finds bottom of world's deepest sinkhole

...ttom 318 meters below the surface and generating a sonar map of its inner dimensions. The vehicle employed autonomous navigation and mapping systems developed by Carnegie Mellon University’s Robotics Institute. During a two-week NASA-funded exploration led by Bill Stone of Stone Aerospace, the Deep Phreat...

Moths mimic sounds to survive

...rest, co-authored the study. In response to the sonar that bats use to locate prey, the tiger moths make ultrasonic clicks of their own. They broadcast the clicks from a paired set of structures called “tymbals.” Many species of tiger moth use the tymbals to make specific sounds that warn the bat of t...

Dinosaur hearing, listening to muscle noise, quieter cubicles

...ctivities. The in-water system consists of sets of sonar dishes that transmit and detect sound waves. Sign...ll explain how the Huygens probe deployed a simple sonar system and speed-of-sound sensor to constrain the methane content on the planet and provide inform...

Biologically inspired sensors can augment sonar, vision system in submarines

...r pressure and movement, the device can supplement sonar and vision systems in submarines and underwater robots," said Liu, who also is affiliated with the university’s Beckman Institute for Advanced Science and Technology, the Institute for Genomic Biology, and the Micro and Nanotechnology Laboratory. L...

Extraordinary life found around deep-sea gas seeps

...inpointed potential seep sites using sophisticated sonar to map seafloor topography and substrate and to de...rrounding the seeps for chemical analysis and used sonar to study the geological structures lying beneath them. The discovery of so many sites suggests ...

Deep-water discovery

...and Atmospheric Science researchers using advanced sonar techniques discovered new deepwater reef sites in ...water habitats off Miami and Bimini using advanced sonar technology and an autonomous underwater vehicle (AUV). AUVs operate without a tether to the surface...

Drug discovery team to explore newly discovered deep-sea reefs

...ember by a University of Miami team using advanced sonar techniques. A primary goal of the upcoming expedi...us underwater vehicle (AUV) equipped with advanced sonar technology. AUVs operate without a tether to the surface and are pre-programmed to independently per...

One fish, two fish: New MIT sensor improves fish counts

... old technique, survey vessels send high-frequency sonar beams into the ocean, where they dissipate much li.... In contrast, the new system uses low-frequency sonar that can travel much greater distances and still return useful information with signals far less int...

Yale researchers find environmental toxins disruptive to hearing in mammals

...s. "Since many marine mammals use echolocation or sonar to get around, this could be contributing to whales and dolphins beaching and hitting ships," Santos-Sacchi said. ...

Rare Chinese frogs communicate by means of ultrasonic sound

...and dolphins do this, and use ultrasound for their sonar system and communication. Frogs were never taken i...s limited to animals equipped with a sophisticated sonar system," he said. "This suggests that there are likely many other examples of unexpected forms of co...

Bats use touch receptors on wings to fly, catch prey, study finds

...hers discovered echolocation, a kind of biological sonar found in bats, dolphins and a few other animals. Bats use echolocation to identify and navigate their environment by emitting calls and listening to the echoes that return from various objects. Zook believes the touch-sensitive receptors on bats' wi...

Deep treasure to be found in Oculina Bank

...verify, a newly produced high-resolution multibeam sonar map of the region, which offers unprecedented resolution to reveal bottom features that were previously indistinguishable. The team will explore various areas using the ROV to compare observations with what appears on the map. This will allow scienti...

Researchers use 3-D imaging system to unveil swimming behavior of microscopic plankton

...tors. The imaging system, Fish TV, uses multibeam sonar to uniquely measure animal movement. The system al...sula. At the sites scuba divers attached Fish TV's sonar head ("transducer") on a large underwater tripod raised some 20 feet above the seafloor. The transdu...

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