Results 61 to 70 of about 2,249 (202)

Following a foraging fish-finder: diel habitat use of Blainville's beaked whales revealed by echolocation. [PDF]

open access: yesPLoS ONE, 2011
Simultaneous high resolution sampling of predator behavior and habitat characteristics is often difficult to achieve despite its importance in understanding the foraging decisions and habitat use of predators.
Patricia Arranz   +5 more
doaj   +1 more source

Vocal fold vibratory and acoustic features in fatigued Karaoke singers [PDF]

open access: yes, 2012
Session 3aMU - Musical Acoustics and Speech Communication: Singing Voice in Asian CulturesKaraoke is a popular singing entertainment particularly in Asia and is gaining more popularity in the rest of world.
Chan, K   +4 more
core   +1 more source

Spatiotemporal patterning of acoustic gaze in echolocating bats navigating gaps in clutter

open access: yesiScience, 2021
Summary: We challenged four big brown bats to maneuver through abrupt turns in narrow corridors surrounded by dense acoustic clutter. We quantified bats' performance, sonar beam focus, and sensory acquisition rate.
Amaro Tuninetti   +4 more
doaj   +1 more source

Amazon river dolphins (Inia geoffrensis) use a high-frequency short-range biosonar [PDF]

open access: yes, 2015
Author Posting. © The Company of Biologists, 2015. This article is posted here by permission of The Company of Biologists for personal use, not for redistribution. The definitive version was published in Journal of Experimental Biology 218 (2015): 3091-
Akamatsu   +61 more
core   +4 more sources

Severe Hearing Loss in the World's First Successfully Captive‐Born Yangtze Finless Porpoise: Impact of High Underwater Sound Exposure and Congenital Hearing Disorders

open access: yesIntegrative Zoology, Volume 21, Issue 2, Page 331-342, March 2026.
The audiogram of the world's first successfully captive‐born Yangtze finless porpoise was on average 40 dB higher than conspecifics. Congenital hearing disorders and noise exposure may be the primary cause of porpoise's hearing loss. ABSTRACT Aquariums globally have seen significant growth in recent decades.
Zhitao Wang   +3 more
wiley   +1 more source

Analog VLSI Models of Range-Tuned Neurons in the Bat Echolocation System

open access: yesEURASIP Journal on Advances in Signal Processing, 2003
Bat echolocation is a fascinating topic of research for both neuroscientists and engineers, due to the complex and extremely time-constrained nature of the problem and its potential for application to engineered systems.
Horiuchi Timothy, Cheely Matthew
doaj   +1 more source

Echolocation by the harbour porpoise: Life in coastal waters

open access: yesFrontiers in Physiology, 2013
The harbour porpoise is one of the smallest and most widely spread of all toothed whales. They are found abundantly in coastal waters all around the northern hemisphere.
Lee Anton Miller, Magnus eWahlberg
doaj   +1 more source

Biosonar performance of foraging beaked whales (Mesoplodon densirostris) [PDF]

open access: yesJournal of Experimental Biology, 2005
SUMMARYToothed whales (Cetacea, odontoceti) emit sound pulses to probe their surroundings by active echolocation. Non-invasive, acoustic Dtags were placed on deep-diving Blainville's beaked whales (Mesoplodon densirostris) to record their ultrasonic clicks and the returning echoes from prey items, providing a unique view on how a whale operates its ...
Madsen, P T   +4 more
openaire   +4 more sources

Ultra-high foraging rates of harbor porpoises make them vulnerable to anthropogenic disturbance [PDF]

open access: yes, 2016
This study was partly funded by the German Federal Agency for Nature Conservation (BfN) under the contract Z1.2-5330/2010/14 and the BfN-Cluster 7 “Effects of underwater noise on marine vertebrates.” D.M.W. and P.T.M.
Johnson, Mark   +8 more
core   +2 more sources

Integration of Soft‐Robotics and Deep Learning to Assess the Coordinated Biosonar Emission and Reception Dynamics in Hipposiderid Bats

open access: yesAdvanced Robotics Research, Volume 2, Issue 1, February 2026.
Combining a biomimetic soft‐robot with deep‐learning data analytics sheds light on a unique peripheral dynamics seen in the biosonar system of bats: Bats modulate their ultrasonic biosonar signals upon emission as well as reception with variable, yet highly coordinated motion patterns of their noseleaves and pinnae.
Shuxin Zhang   +4 more
wiley   +1 more source

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