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Latest Microbat Stories

2011-11-28 15:15:07

By placing real and virtual objects in the flight paths of bats, scientists at the Universities of Bristol and Munich have shed new light on how echolocation works. Their research is published today in Behavioral Processes. The researchers found that it is not the intensity of the echoes that tells the bats the size of an object but the 'sonar aperture', that is the spread of angles from which echoes impinge on their ears. Echolocating bats emit calls for orientation. These calls bounce...

Evolutionary Biologists Discover How Species Evolve
2011-11-24 04:17:40

'This study conducted during the International Year of the Bat offers a clear example of how the evolution of new traits, in this case a skull with a new shape, allowed animals to use new resources and eventually, to rapidly evolve into many new species' A new study involving bat skulls, bite force measurements and scat samples collected by an international team of evolutionary biologists is helping to solve a nagging question of evolution: Why some groups of animals develop scores of...

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2010-03-30 06:35:00

For years, Brown University neuroscientist James Simmons has filmed bats as they flew in packs or individually chased prey in thick foliage. All the while, he asked himself why the bats never collided with objects in their paths or with each other. "You wonder, how do they do it?" he said. After a series of innovative experiments designed to mimic a thick forest, Simmons and colleagues at Brown and in Japan have discovered how bats are so adept at avoiding objects, real or perceived. In a...

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2010-01-25 13:25:00

Only some bats and toothed whales rely on sophisticated echolocation, in which they emit sonar pulses and process returning echoes, to detect and track down small prey. Now, two new studies in the January 26th issue of Current Biology, a Cell Press publication, show that bats' and whales' remarkable ability and the high-frequency hearing it depends on are shared at a much deeper level than anyone would have anticipated"”all the way down to the molecular level. The discovery represents...

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2010-01-25 07:25:00

3-D imaging differentiates how various bats generate biosonar signals Researchers at The University of Western Ontario (Western) led an international and multi-disciplinary study that sheds new light on the way that bats echolocate. With echolocation, animals emit sounds and then listen to the reflected echoes of those sounds to form images of their surroundings in their brains. The team used state-of-the-art micro-computed tomography systems at the Robarts Research Institute in London,...

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2008-12-12 12:34:55

Annemarie Surlykke from the University of Southern Denmark is fascinated by echolocation. She really wants to know how it works. Surlykke equates the ultrasound cries that bats use for echolocation with the beam of light from a torch: you won't see much with the light from a small bulb but you could see several hundred meters with a powerful beam. Surlykke explains that it's the same with echolocating bats. Some have big powerful calls for perception over a long range, while others are said...

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2008-09-08 09:49:49

Echolocation may have evolved more than once in bats, according to new research from the University of Bristol published last week in Proceedings of the National Academy of Sciences (PNAS). Professor Gareth Jones of the University of Bristol and Dr Stephen Rossiter of Queen Mary University of London, in collaboration with colleagues from East China Normal University in Shanghai, investigated the evolution of a gene called Prestin in echolocating bats "“ mammals with the most sensitive...


Latest Microbat Reference Libraries

Proboscis Bat, Rhynchonycteris naso
2012-07-13 19:51:50

The proboscis bat (Rhynchonycteris naso) is native to Central and South America, and it is the only species in its genus. Its other common names include the river bat, the sharp-nosed bat, and the Brazilian long-nosed bat, and in Spanish, it is known as murciélago narizón. Its range extends from southern Mexico to Peru, and it occurs in Brazil, Bolivia, and Trinidad. The proboscis bat prefers a habitat within low lands in southwestern Mexico, half of South America, and throughout Central...

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2007-08-14 04:11:11

The Ghost Bat (Macroderma gigas), also known as the Australia False Vampire Bat, is a species of bat endemic to Australia. It is named for the extremely thin membrane of its wings that makes it appear ghostly at night. They inhabit northern Australia, from the east to west coast. They roost in caves, mines, and tunnels in small colonies, usually of less than a hundred bats. Ghost Bats have grey fur on their backs and pale grey or white fur on their undersides. They have long, narrow wings...

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2007-01-19 11:51:53

Horseshoe bats (the Rhinolophidae family) are a large family of bats including approximately 130 species grouped in 10 genera. They belong to the suborder Microchiroptera (microbats). All Rhinolophids have leaf-like protuberances on their noses. In Rhinolophines species, these take the shape of a horseshoe. They emit sonar calls through these structures, which may serve to focus the sound. Most Rhinolophids are dull brown or reddish brown in color. They vary in size from small to...

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Word of the Day
tesla
  • The unit of magnetic flux density in the International System of Units, equal to the magnitude of the magnetic field vector necessary to produce a force of one newton on a charge of one coulomb moving perpendicular to the direction of the magnetic field vector with a velocity of one meter per second. It is equivalent to one weber per square meter.
This word is named for Nikola Tesla, the inventor, engineer, and futurist.