Current Echolocation News and Events | Page 2

Current Echolocation News and Events, Echolocation News Articles.
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Red light at night: A potentially fatal attraction to migratory bats
Night time light pollution is rapidly increasing across the world. Nocturnal animals are likely to be especially affected but how they respond to artificial light is still largely unknown. In a new study, scientists from the Leibniz Institute for Zoo and Wildlife Research (Leibniz-IZW) in Berlin, Germany, tested the response of European bats to red and white light sources during their seasonal migration. (2018-08-26)

UB psychologist proposes whales use song as sonar
A University at Buffalo psychologist has proposed in a newly published paper that humpback whales may use song for long-range sonar. It's the singing whale, not the listening whale who is doing most of the analysis, according to Eduardo Mercado III. If he's right, Mercado says his model should change the direction of how we study whales. (2018-07-30)

Dolphin algorithm could lead to better medical ultrasounds
Millions of years of evolutionary fine-tuning have made dolphins phenomenally good at using echolocation to orient themselves, find food and communicate with one another. But how do they actually do it? New research from Lund University in Sweden shows that they emit two intertwined ultrasound beam components at different frequencies -- and with slightly different timing. (2018-05-31)

Impacts of windfarm construction on harbor porpoises
Scientists from Germany, Denmark and the UK have built a model tool to predict what happens to marine animals when exposed to noise from the construction and operation of wind farms at sea. (2018-05-07)

Bats go quiet during fall mating season
Giving someone the 'silent treatment' during courtship might not be the best strategy for romance. But, new research shows hoary bats fly with little or no echolocation at all as a possible mating-related behavior. (2018-05-02)

Capturing of the rare Yanbaru whiskered bat
The critically endangered Yanbaru whiskered bat, Myotis yanbarensis, has been caught for the first time on Okinawa Island since its discovery 22 years ago. (2018-04-27)

UEA research paints underwater pictures with sound
Silent marine robots that record sounds underwater are allowing researchers to listen to the oceans as never before. While pilot whales make whistles, buzzes and clicks, pods of hunting dolphins create high-pitched echolocation clicks and larger species such as sperm whales make louder, slower clicks. As well as eavesdropping on marine life, the recordings can be used to measure sea-surface wind speed and monitor storms. The research will be presented at the General Assembly of the European Geosciences Union, Vienna. (2018-04-10)

Scientists records brain activity of free-flying bats
Johns Hopkins University researchers have developed a way to study the brain of a bat as it flies, recording for the first time what happens as a roving animal focuses and refocuses its attention. (2018-04-10)

Dissecting artificial intelligence to better understand the human brain
In the natural world, intelligence takes many forms. It could be a bat using echolocation to expertly navigate in the dark, or an octopus adapting its behavior to survive in the deep ocean. Likewise, in the computer science world, multiple forms of artificial intelligence are emerging. As will be presented at the CNS conference, cognitive neuroscientists are using those emerging networks to enhance understanding of one of the most elusive intelligence systems, the human brain. (2018-03-25)

Fruit bat's echolocation may work like sophisticated surveillance sonar
High-speed recordings of Egyptian fruit bats in flight show that instead of using a primitive form of echolocation, these animals actually use a technique recently developed by humans for surveillance and navigation. (2018-02-07)

New algorithm recognizes distinct dolphin clicks in underwater recordings
Scientists have developed a new algorithm that can identify distinct dolphin click patterns among millions of clicks in recordings of wild dolphins. This approach, presented in PLOS Computational Biology by Kaitlin Frasier of Scripps Institution of Oceanography, California, and colleagues, could potentially help distinguish between dolphin species in the wild. (2017-12-07)

Muscles can't get any faster then this ... a fundamental muscle speed limit
When birds sing their elaborate songs, bats echolocate, rattlesnakes rattle and toadfish hum they use so-called superfast muscles, the fastest vertebrate muscles known. New research shows that these muscles have reached a maximum speed attainable in any vertebrate muscle. (2017-11-27)

How bat brain tracks prey
The bat midbrain is uniquely organized to facilitate rapid integration of sensory and motor information required for tracking prey using biological sonar, according to neural recordings of wild bats obtained during laboratory experiments described in JNeurosci. (2017-11-27)

The pros and cons of large ears
Researchers at Lund University in Sweden have compared how much energy bats use when flying, depending on whether they have large or small ears. (2017-11-13)

Smooth, manmade surfaces create a 'blind spot' for bats using echolocation
Bats are well known for their sophisticated use of echolocation to navigate through areas riddled with obstacles, but now a new study reveals that this useful ability is hindered in the face of smooth vertical surfaces -- those that are particularly likely to be manmade. (2017-09-07)

Mouth clicks used in human echolocation captured in unprecedented detail
Like some bats and marine mammals, people can develop expert echolocation skills, in which they produce a clicking sound with their mouths and listen to the reflected sound waves to 'see' their surroundings. A new study published in PLOS Computational Biology provides the first in-depth analysis of the mouth clicks used in human echolocation. (2017-08-31)

Study finds pallid bat is unfazed by venom of Arizona bark scorpion
The Arizona bark scorpion is the most venomous scorpion in North America. The pallid bat is believed to be resistant to scorpion venom, but no laboratory studies have been performed to confirm this. Researchers at the University of California, Riverside now report in PLOS ONE that the pallid bat hunts the Arizona bark scorpion but is unaffected by its venom even after it is stung multiple times during the hunt. (2017-08-30)

Bird with super senses inspires researchers
Not much surprises the oilbird. Its senses are super sharp and when combined, may function in a way that can inspire researchers to construct better drones and more advanced technology. (2017-08-01)

UNIST reveals the whole genome sequences of rare red bat
South Korea's Ulsan National Institute of Science and Technology has presented, for the first time, the whole genome sequence and analyses of the Myotis rufoniger. (2017-07-17)

Exploring the potential of human echolocation
People who are visually impaired will often use a cane to feel out their surroundings. With training and practice, people can learn to use the pitch, loudness and timbre of echoes from the cane or other sounds to navigate safely through the environment using echolocation. Bo Schenkman, from KTH Royal Institute of Technology in Stockholm, Sweden, will present a summary of some aspects of his work on human echolocation during Acoustics '17 Boston. (2017-06-25)

Can you hear me now?
When trying to be heard over noise, humans and animals raise their voices. Researchers have now measured just how fast the response occurs in bats: 30 milliseconds. That's just a tenth of the time it takes to blink an eye. (2017-06-06)

Scientists track porpoises to assess impact of offshore wind farms
A new study is the first in a series to understand how marine mammals like porpoises, whales, and dolphins may be impacted by the construction of wind farms off the coast of Maryland. The new research offers insight into previously unknown habits of harbor porpoises in the Maryland Wind Energy Area, a 125-square-mile area off the coast of Ocean City that may be the nation's first commercial-scale offshore wind farm. (2017-05-05)

Researchers solve the century-old mystery of Blood Falls
A research team led by the University of Alaska Fairbanks and Colorado College has solved a century-old mystery involving a famous red waterfall in Antarctica. New evidence links Blood Falls to a large source of salty water that may have been trapped under Taylor Glacier for more than 1 million years. (2017-04-24)

For horseshoe bats, wiggling ears and nose makes biosonar more informative
Virginia Tech researchers have discovered that these tiny movements pack more information into ultrasound pulses the bats send and receive, helping them locate objects around them. (2017-04-06)

Newborn harbor porpoises have the fastest hearing development among mammals
All mammals can hear -- but it is not an ability that is fully developed at birth. Some mammals like humans take years to fully develop their hearing abilities, but for a newborn harbor porpoise it takes less than 30 hours. This is the fastest in any studied mammal. (2017-03-02)

Columbia University Professor among 2017 Sloan Research Fellowship Recipients
Sebastian Will, an assistant professor in the Department of Physics at Columbia University, has been named a 2017 Sloan Research Fellow. (2017-02-21)

JNeurosci: Highlights From the Feb. 8 Issue
Check out these newsworthy studies from the Feb. 8, 2017, issue of JNeurosci. Media interested in obtaining the full text of the studies should contact (2017-02-08)

Echolocation: Sizing up spaces by ear
Humans can be trained to use echolocation to estimate the sizes of enclosed spaces. Ludwig-Maximilians-Universitaet (LMU) in Munich researchers now show that the learning process involves close coordination between sensory and motor cortex. (2017-01-26)

How navigational goals are represented in the bat brain
In bats, researchers have identified a subpopulation of neurons that represent navigational goals, a new study reports. The results provide valuable insights into how bats fly from A to B. (2017-01-12)

What role does mouth shape play for echolocating bats?
While studying bats, researchers noticed a large group of muscles running straight down the middle of the top of the bat's skull. A set of muscles like this is quite unusual in size and location for a small mammal, so they questioned their purpose. During the 172nd ASA meeting, the researchers will present their work exploring the muscle's complex activity patterns during sonar performance. (2016-11-28)

Narwhal echolocation beams may be the most directional of any species
Analysis of some of the first recordings of wintering narwhals showed that they may have the most directional sonar of any species, according to a study published Nov. 9, 2016 in the open-access journal PLOS ONE by Jens Koblitz from Bioacoustics Network, Germany, and colleagues. (2016-11-09)

Blind as bats: Echolocation study reveals key evolutionary trade-offs with other senses
A research team has performed a new comparative study of two sophisticated echolocating bats. Their results confirm evolutionary trade-offs at work -- showing an extensive contraction of smell (olfactory) receptor gene repertoires and loss of a dozen vision-related genes in the echolocating bats. (2016-11-01)

Kill them with cuteness: The adorable thing bats do to catch prey
A Johns Hopkins University researcher noticed the bats he works with cocked their heads to the side, just like his pet pug. As the article publishing in open-access journal PLOS Biology details, using high-tech recording devices, Wohlgemuth determined that a bat's fetching head waggles and ear wiggles sync with the animal's sonar vocalizations to help it hunt. The finding demonstrates how movement in bats can enhance signals used by senses like sight and hearing. (2016-09-08)

Whales' ultrasonic hearing has surprisingly ancient history, fossilized ear shows
All living toothed whales rely upon echoes of their own calls to navigate and hunt underwater, a skill that works best in conjunction with high-frequency hearing. Now, researchers reporting in the Cell Press journal Current Biology on Aug. 4 who studied one of the best-preserved ears of any ancient whale ever discovered find that whales' high-frequency hearing abilities arose earlier than anticipated. (2016-08-04)

Echo hunter: Researchers name new fossil whale with high frequency hearing
A newly named fossil whale species had superior high-frequency hearing ability, helped in part by the unique shape of inner ear features that have given scientists new clues about the evolution of this specialized sense. Researchers say high-frequency hearing likely predated echolocation development. (2016-08-04)

Echo templates aid mental mapping in bats
A study published in eLife provides new insights on how bats recognize their surroundings to help them build mental maps. (2016-08-02)

What does the sperm whale say?
When a team of researchers began listening in on seven sperm whales in the waters off the Azores, they discovered that the whales' characteristic tapping sounds serve as a form of individual communication. But what are they actually saying? (2016-06-30)

Harbour porpoises are skilled hunters and eat almost constantly
Harbour porpoises have sometimes been described as 'living in the fast lane.' Being smaller than other cetaceans and living in cold northern waters means that the porpoises require a lot of energy to survive, making them prone to starvation. Now researchers reporting in Current Biology on May 26 have monitored harbour porpoises in the wild with tiny computers attached to them by suction cups show that the animals hunt and eat almost constantly. (2016-05-26)

Mucus may play vital role in dolphin echolocation
A dolphin chasing a tasty fish will produce a stream of rapid-fire echolocation clicks that help it track the speed, direction and distance to its prey. Now researchers have developed a model that could yield new insights into how the charismatic marine mammals make these clicks - and it turns out snot may play an important role. The researchers will present their model at the 171st meeting of the Acoustical Society of America. (2016-05-24)

What bats reveal about how humans focus attention
Researchers discover how a bat's brain determines what sounds are worth paying attention to. (And how human brains probably do too.) (2016-02-23)

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