Results 71 to 80 of about 1,345 (186)

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

Integrative 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, Tomonari Akamatsu, Kexiong Wang, Ding Wang   +3 more
wiley   +1 more source

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

Advanced 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, Ruihao Wang, Xiaoyan Yin, Luhui Yang, Rolf Müller   +4 more
wiley   +1 more source

Robustness of cortical and subcortical processing in the presence of natural masking sounds

Scientific Reports, 2018
Processing of ethologically relevant stimuli could be interfered by non-relevant stimuli. Animals have behavioral adaptations to reduce signal interference.
M. Jerome Beetz, Francisco García-Rosales, Manfred Kössl, Julio C. Hechavarría   +3 more
doaj   +1 more source

3D sparse imaging in biosonar scene analysis

, 2009
: Bats can navigate through foliage thanks to their biosonar. To build an image of their environment they emit ultrasonic pulses and analyse the corresponding echo signals which consist of a complex superposition of a set of highly overlapping reflected ...
Steckel, Jan, Fontaine, Bertrand, Peremans, Herbert   +2 more
core   +1 more source

SonoNERFs: Neural Radiance Fields Applied to Biological Echolocation Systems Allow 3D Scene Reconstruction through Perceptual Prediction

Biomimetics
In this paper, we introduce SonoNERFs, a novel approach that adapts Neural Radiance Fields (NeRFs) to model and understand the echolocation process in bats, focusing on the challenges posed by acoustic data interpretation without phase information ...
Wouter Jansen, Jan Steckel
doaj   +1 more source

Exploring Marine Mammal Cognition as a Conservation Tool

Marine Mammal Science, Volume 42, Issue 1, January 2026.
ABSTRACT Cognition is an animal's real‐time adaptation system for responding to change. Rapid environmental change, often anthropogenic, is expanding the range and severity of challenges confronting wild animals. Effective conservation requires a multifaceted approach that includes animals' capacities.
Gordon B. Bauer, Peter F. Cook, Heidi E. Harley, Jason Bruck, Mel Cosentino, Charles J. Deutsch, Nicola Erdsack, Wendi Fellner, Tabitha Gunnars, Heather Manitzas Hill, Sonia V. Kumar, Malin K. Lilley, Katherine A. McHugh, Jennifer Moore, Juliana R. Moron, Andrea Ravignani, Roger L. Reep, Athena M. Rycyk, Laela S. Sayigh, Anikó Szegedi, Christina Toms, Randall S. Wells   +21 more
wiley   +1 more source

Evolution of the heteroharmonic strategy for target-range computation in the echolocation of Mormoopidae.

Frontiers in Physiology, 2013
Echolocating bats use the time elapsed from biosonar pulse emission to the arrival of echo (defined as echo-delay) to assess target-distance. Target-distance is represented in the brain by delay-tuned neurons that are classified as either heteroharmonic ...
Emanuel C Mora, Silvio eMacias, Julio C. Hechavarría, Marianne eVater, Manfred eKössl   +4 more
doaj   +1 more source

Amazon river dolphins ( Inia geoffrensis ) modify biosonar output level and directivity during prey interception in the wild [PDF]

, 2017
Toothed whales have evolved to live in extremely different habitats and yet they all rely strongly on echolocation for finding and catching prey. Such biosonar-based foraging involves distinct phases of searching for, approaching and capturing prey ...
Ladegaard, M., Michael Ladegaard, Beedholm, K., da Silva, V.M.F., Jensen, Frants H., Vera Maria Ferreira da Silva, Madsen, Peter Teglberg T., Kristian Beedholm, Silva, Vera Maria Ferreira da, Frants Havmand Jensen, Beedholm, Kristian, Jensen, F.H., Peter Teglberg Madsen, Ladegaard, Michael, Madsen, P.T.   +14 more
core   +1 more source

Ultrasonic predator-prey interactions in water– convergent evolution with insects and bats in air?

Frontiers in Physiology, 2013
Toothed whales and bats have independently evolved biosonar systems to navigate and locate and catch prey. Such active sensing allows them to operate in darkness, but with the potential cost of warning prey by the emission of intense ultrasonic signals ...
Maria eWilson, Magnus eWahlberg, Annemarie eSurlykke, Peter Teglberg Madsen   +3 more
doaj   +1 more source

Numerical Study of the Effect of Furrows on Biosonar Beamforming in Aselliscus Stoliczkanus Bat

Archives of Acoustics, 2017
The Aselliscus Stoliczkanus bat, studied here, has intricately shaped structures surrounding the nostrils. These structures are hypothesised to have influence on animals’ acoustic radiation patterns.
Weikai HE, Jianxiong FENG, Li GAO, Zhiwei ZHANG, Hongwang LU   +4 more
doaj   +1 more source