Sentences with word «echolocation»

«It is conceivable that the terrestrial ancestors of echolocating bats used echolocation in a similar way,» says Jones — although he points out that bats are not closely related to rodents, so the dormice would have gained their ability to echolocate independently rather than from an ancestor common to them and bats.

As a result, since the mid-20th century it was thought that the ancient jawed and jawless lines evolved gills separately after they split, an example of «convergent evolution» — where nature finds the same solution twice (such as the use of echolocation in both bats and whales, for example).

Though the research is still in its early stages, he hopes that a virtual reality program similar to that used in the study will eventually help blind people learn to use echolocation in the safety and privacy of their homes.

As with echolocation masters like bats and dolphins, Teng thinks the answer is echoes.

The algorithm uncovered six previously unknown types of dolphin echolocation clicks in underwater recordings from the Gulf of Mexico, researchers report online December 7 in PLOS Computational Biology.

Bo Schenkman, an associate professor at 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, the third joint meeting of the Acoustical Society of America and the European Acoustics Association being held June 25 - 29, in Boston, Massachusetts.

Like other toothed whales porpoises use echolocation for orientation and to detect prey.

This ability sets them apart from many other toothed whales, which do not have such sophisticated echolocation abilities.

«It means that high - frequency hearing fundamental to echolocation evolved through the same molecular route,» says Stephen Rossiter of Queen Mary, University of London.

Toothed whales all navigate by echolocation and share distinct genetic markers that separate them from the baleen relatives they diverged from some 35 million years ago.

While studying for graduate school, I worked part - time as Veterinary Technician at an emergency animal clinic, plus I volunteered and started my thesis research on dolphin echolocation at the John G. Shedd Aquarium in Chicago.

The findings fit well with her own recent study, which showed that head movements can enable blind echolocation experts to sense an object's contours, she says.

Automated classification of dolphin echolocation click types from the Gulf of Mexico.

That's because the nocturnal creatures navigate by bouncing ultrasonic sound off of their surroundings, a technique known as echolocation.

But why do many species of porpoises and other small toothed whales emit echolocation sounds at about 130 kHz?

For example, bats with sonar and echolocation systems appear with no obvious link to a more primitive ancestor.

One way to avoid being eaten was to emit echolocation sounds that were difficult for killer whales to detect — thus an ability favored by evolution, «concludes Lee Miller and Magnus Wahlberg in their research article.

To ensure that the acoustics of the simulated room were realistic, the researchers asked two blind echolocation experts to navigate it first; both were quickly able to orient their bodies toward the center of the aisle.

The bat's nose shape helps focus and direct the sound traveling out of its nostrils during echolocation.

This ramps up tension as you seek to complete your objective all while only being able to see through echolocation by tapping your cane.

Environmental critics contend the sonar pulses are too loud, producing a devastating impact on whales, dolphins, and other marine mammals that rely on echolocation to communicate, navigate, and locate prey.

The research also provides a new way of studying echolocation that can't be done in animals, she notes.

Victor's comment about them having some kind of echolocation like bats was also a nice touch.

Because echolocation allows blind individuals to perceive objects from a distance, it can be used as an alternative to vision, allowing the perception of distant objects that would be impossible through touch.

The ancestor of whales emerged about 50 million years ago, and the first toothed whales began to use echolocation about 30 million years ago.

Dolphins are famous for their ability to hunt prey via echolocation.

It is a sequence of three to four sounds, longer in duration and lower in frequency than the typical echolocation pulses that big brown bats use to navigate.

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.

As the researchers examined audio recordings from two bats flying and foraging together, they noticed calls that seemed different from typical echolocation.

Perception's unique echolocation gameplay hook is enough to sustain the game for its 4 -5-hour run, but I was saddened that The Deep End Games didn't explore this mechanic any more than it did.

Whilst Perception's spine - chilling narrative adventure doesn't do anything overly spectacular throughout its four - hour runtime, it did offer something unique with its use of echolocation gameplay.

«This allows us to embark on an exciting new journey in human echolocation research.»

But for individuals who became impaired later in life, echolocation training can help them to move through the world with greater independence and safety.

The genomes of greater horseshoe bats have evolved in the same way as dolphins» to enable echolocation.

«Our findings suggest that FOXP2 may have played a crucial role during the evolution and diversification of echolocation behavior in bats,» says Rossiter.

These «smart» canes use high - tech echolocation to help the visually impaired get around even better.

Harbor porpoises are frequently exposed to sounds from shipping vessels that register at around 100 decibels, about as loud as a lawnmower, scientists report February 14 in Proceedings of the Royal Society B. Sounds this loud can cause porpoises to stop echolocation, which they use to catch food.

Whales and dolphins rely on their responsive hearing to interpret returning echolocation clicks.

Previous research suggested that these marine mammals could dull their hearing before uttering outgoing echolocation clicks, which are very loud.

Research into echolocation can inform Orientation and Mobility training, which helps people who are blind or visually impaired to navigate their environment.

It makes sense: Humans have been perfecting sonar for more than a century, but evolution has been honing echolocation for much, much longer.

People who become blind early in life often learn to use their hearing, including echolocation, more efficiently.

How other marine mammals manage to hunt without echolocation has long been a mystery, though.

In the first study to assess the effects of shipping vessel noise on porpoises, researchers tagged seven harbor porpoises off the coast of Denmark with sensors that tracked the animals» movement and echolocation usage in response to underwater noise over about 20 hours.

The discovery means that the European barbastelle bat (Barbastella barbastellus) is no longer the only bat to use stealth echolocation to sneak up on moths.

The Pallas long - tongues bats (Glossophaga soricina) are an important pollinator in Central and South America and belong to a group of bats that are often called «whispering bats» because many emit relatively quiet echolocation calls to forage within dense vegetation.

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.

New fossil suggests echolocation evolved early in whales.

To test the extent to which people can compensate for this immobility, Wiegrebe and colleagues recruited eight undergraduates with normal vision to don blindfolds and learn some basic echolocation skills.