Navigation Links
How bats took over the night
Date:12/12/2013

Blessed with the power of echolocation reflected sound bats rule the night skies. There are more than 1,000 species of these echolocating night creatures, compared with just 80 species of non-echolocating nocturnal birds. And while it seems that echolocation works together with normal vision to give bats an evolutionary edge, nobody knows exactly how.

Now Dr. Arjan Boonman and Dr. Yossi Yovel of Tel Aviv University's Department of Zoology suggest that bats use vision to keep track of where they're going and echolocation to hunt tiny insects that most nocturnal predators can't see. The findings, published in Frontiers in Physiology, add to our scientific understanding of sensory evolution.

"Imagine driving down the highway: Everything is clear in the distance, but objects are a blur when you pass them," said Dr. Boonman. "Well, echolocation gives bats the unique ability to home in on small objects mostly insects while flying at high speeds."

Battle of the senses

Bats do most of their feeding at dusk, when insects are most active and there is still plenty of light. Under these conditions, vision seems a better option than echolocation it conveys more information, and more quickly, at a higher resolution. The researchers wondered: If bats evolved vision before echolocation, as scientists believe, why did echolocation ever come along?

The team set out to answer this question by comparing the distances at which the two senses can detect small objects. To estimate the range of ultrasonic bat echolocation, the researchers played taped calls of two species of bats in a soundproof room and recorded the way the sound bounced off four dead insects a moth, an ant, a lacewing, and a mosquito. Vision is hard to simulate, so, extrapolating from the findings of two previous studies, the researchers calculated the distance at which bats would be able to see the same insects in medium to low light.

Even er
'/>"/>

Contact: George Hunka
ghunka@aftau.org
212-742-9070
American Friends of Tel Aviv University
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Breaking up isnt hard to do -- the secret lives of corals on dark and stormy nights
2. Barley takes a leaf out of reindeers book in the land of the midnight sun
3. Tigers take the night shift to coexist with people
4. Music to the ears for a good nights sleep?
5. Music to the Ears for a Good Nights Sleep?
6. Musicians who learn a new melody demonstrate enhanced skill after a nights sleep
7. Roe deer more likely to be run over at nightfall on a Sunday in April
8. Plants do sums to get through the night
9. New study finds nighttime heat waves increasing in Pacific Northwest
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/11/2014)... de Janeiro, Brazil- In the brains of all ... that allows an electric or chemical signal to ... Chemical synapses, which are the most abundant type ... Synapse formation is crucial for learning, memory, perception ... inhibitory synapses critical for brain function. For ...
(Date:7/10/2014)... CORAL SPRINGS, Florida , July 1, 2014 ... smart wallets pave way for convenience and improved security: NXT-ID, ... Google Inc. (NASDAQ: GOOG ), Apple Inc. (NASDAQ: ... ) and MasterCard Corporation (NYSE: MA) NXT-ID, Inc., (OTCQB: ... market, is pleased to announce that the second series of ...
(Date:7/10/2014)... Research and Markets ( http://www.researchandmarkets.com/research/h7h8lq/gesture ) ... Gesture Recognition & Touch-Less Sensing (2D, 3D, Ultrasonic, ... report to their offering ... Touch-Less Sensing Market to Grow Exponentially. Touch-less sensing ... the companies were unable to leverage this technology ...
Breaking Biology News(10 mins):Blame it on the astrocytes 2Advantages for Digital Wallets Eliminate Need to Carry Credit Cards - Large Scale CNBC Ad Campaign for Latest Smart Wallet to Commence July 7th 2Advantages for Digital Wallets Eliminate Need to Carry Credit Cards - Large Scale CNBC Ad Campaign for Latest Smart Wallet to Commence July 7th 3Advantages for Digital Wallets Eliminate Need to Carry Credit Cards - Large Scale CNBC Ad Campaign for Latest Smart Wallet to Commence July 7th 4Advantages for Digital Wallets Eliminate Need to Carry Credit Cards - Large Scale CNBC Ad Campaign for Latest Smart Wallet to Commence July 7th 5Global Gesture Recognition & Touch-Less Sensing (2D, 3D, Ultrasonic, IR, Capacitive) Market - Forecasts to 2020 2
... may unravel important clues about a different sort of passage: ... of Florida study suggests. Its kind of quirky that ... how we traveled around the globe, said David Reed, an ... History on the UF campus and one of the studys ...
... awarded the Premio Nacional de Investigacin in Madrid at the ... other laureates. At the award ceremony attended by the Spanish ... prize by King Juan Carlos himself. The jury of the ... leading researchers on the marine ecosystem. The work he has ...
... Consumers have long known that including dairy in ... help promote weight loss. However, a recent study published ... the official publication of the American Academy of Periodontology ... also help promote periodontal health. The study analyzed the ...
Cached Biology News:Mummy lice found in Peru may give new clues about human migration 2Mummy lice found in Peru may give new clues about human migration 3Springer author Carlos M. Duarte awarded Spanish science prize 2Want healthy gums? Hit the dairy aisle 2
(Date:7/10/2014)... Robert Harman, DVM, Founder and CEO of Vet-Stem, Inc., the ... relaunch of his highly informative blog, now named Stem Cells ... are Stem Cells ?” Dr. Harman’s purpose for blogging ... basics of stem cell therapy so that pet owners can ... when considering regenerative medicine. , A veterinarian by trade, Dr. ...
(Date:7/10/2014)... ST. PETERSBURG, Russia , July 10, 2014 /PRNewswire/ ... the Russian Federation Dmitry Medvedev , presented ... a biopharmaceutical company BIOCAD . The Company is ... the scope of MabNext project BIOCAD develops a number ... of cancer and autoimmune diseases. The ceremony took place ...
(Date:7/10/2014)... 2014 -- According to the International Atomic Energy ... comes from terrorists acquiring sufficient quantities of plutonium ... crude nuclear explosive device. The IAEA also notes ... involved gram-level quantities, which can be challenging to ... a new study appearing this week in the ...
(Date:7/10/2014)... have observed the fractional quantum Hall effect in bilayer ... can be tuned by an electric field. , ... electrons confined to thin sheets are exposed to large ... where thousands of individual electrons behave as a single ... is well established, many details of this collective behavior ...
Breaking Biology Technology:Robert Harman, DVM Talks About What Stem Cells are in His Latest Blog Series for Vet-Stem, Inc. 2Robert Harman, DVM Talks About What Stem Cells are in His Latest Blog Series for Vet-Stem, Inc. 3Dmitry Medvedev Presented BIOCAD the First National "Industry" Award 2Sensitive detection method may help impede illicit nuclear trafficking 2Columbia researchers observe tunable quantum behavior in bilayer graphene 2Columbia researchers observe tunable quantum behavior in bilayer graphene 3
... ... line of products that leverages the same improvements as the recently released 25mm and 36mm ... engineered plastics, and larger ball bearings for greater rotor support and high axial loading capability. ... Waterbury, CT ...
... magnetic fields to drive iron-bearing nanoparticles to metal stents ... drug payload that successfully prevents blockages in those vessels. ... results at a lower dose than conventional non-magnetic stent ... research is the latest in a series of studies ...
... Vienna, Austria, Friday 16 April: Results of a German ... 2010, the Annual Meeting of the European Association for ... that overall, treatment with high dose (23-28mg/kg/d) ursodeoxycholic acid ... treatment of non-alcoholic steatohepatitis (NASH), the most advanced form ...
Cached Biology Technology:Haydon Kerk Motion Solutions, Inc. Introduces the New 20mm Stepper Motor Linear Actuator 2Haydon Kerk Motion Solutions, Inc. Introduces the New 20mm Stepper Motor Linear Actuator 3Magnetic fields drive drug-loaded nanoparticles to reduce blood vessel blockages in an animal study 2Magnetic fields drive drug-loaded nanoparticles to reduce blood vessel blockages in an animal study 3Magnetic fields drive drug-loaded nanoparticles to reduce blood vessel blockages in an animal study 4High dose UDCA therapy does not improve overall liver histology in obesity related hepatitis 2
Recommended fro Western blotting application...
... Anti-Krueppel-like factor 15 (KLF15) KLF15 ... is found abundantly expressed in the liver, ... #: NP_054798 Specificity: Polyclonal antibody produced ... corresponding to a region of human KLF15 ...
... was developed in the late 1960s by ... the earliest commercial pioneers of immunoassay in ... in 1987. Sac-Cel rapidly found favour with ... "in house" radioimmunoassays, and became a benchmark ...
Determin interaction of your protein with Echelons lipids...
Biology Products: