Results 141 to 150 of about 9,039 (182)
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2014
Bats and toothed whales both emit ultrasonic pulses and listen for returning echoes in a process known as echolocation. However, their biosonars are the results of independent evolution under conditions of poor lighting in air and water that offer very different conditions for production, transmission, and reflection of ultrasound.
Madsen, Professor Peter Teglberg; id_orcid 0000-0002-5208-5259 +1 more
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Bats and toothed whales both emit ultrasonic pulses and listen for returning echoes in a process known as echolocation. However, their biosonars are the results of independent evolution under conditions of poor lighting in air and water that offer very different conditions for production, transmission, and reflection of ultrasound.
Madsen, Professor Peter Teglberg; id_orcid 0000-0002-5208-5259 +1 more
openaire +1 more source
A Theory Of Dolphin Echolocation With Applications To Acoustic Echolocation Systems
Offshore Technology Conference, 1979ABSTRACT A new theory of echolocation is described that explains in detail the sonar systems employed by Cetaceans and other marine mammals. One unusual feature of the method is the use of phase encoded angular coordinate information.
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1963
The cries of bats, although unperceived by our unaided ears, may be made audible by simple electronic apparatus. With such a detector, it is fascinating to observe a bat navigating, negotiating obstacles and catching its prey in the dusk, and to remember that this performance is achieved by acoustic means.
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The cries of bats, although unperceived by our unaided ears, may be made audible by simple electronic apparatus. With such a detector, it is fascinating to observe a bat navigating, negotiating obstacles and catching its prey in the dusk, and to remember that this performance is achieved by acoustic means.
openaire +1 more source
Evidence for echolocation in shrews
Journal of Experimental Zoology, 1964E, GOULD, N C, NEGUS, A, NOVICK
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Correlated evolution of wing morphology and echolocation calls in bats
Frontiers in Ecology and Evolution, 2022Bo Luo, , Luo Bo
exaly