Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Optimal Foraging00:48

Optimal Foraging

14.3K
How animals obtain and eat their food is called foraging behavior. Foraging can include searching for plants and hunting for prey and depends on the species and environment.
14.3K
Dietary Connections01:23

Dietary Connections

66.4K
In biological systems, most metabolic pathways are interconnected. The cellular respiration processes that convert glucose to ATP—such as glycolysis, pyruvate oxidation, and the citric acid cycle—tie into those that break down other organic compounds. As a result, various foods—from apples to cheese to guacamole—end up as ATP. In addition to carbohydrates, food also contains proteins and lipids—such as cholesterol and fats. All of these organic compounds are used...
66.4K
Primary Motives: Hunger and Thirst01:25

Primary Motives: Hunger and Thirst

1.8K
Hunger and thirst are fundamental physiological drives crucial for maintaining homeostasis and ensuring the survival of both humans and animals. These drives are regulated through complex interactions between the brain, hormones, and sensory receptors.
Hunger arises when the brain detects changes in the body's nutrient levels, including glucose, lipids, amino acids, and hormones such as ghrelin and leptin. The hypothalamus plays a central role in hunger regulation. The lateral hypothalamus...
1.8K
Taste Buds and Receptors01:20

Taste Buds and Receptors

6.1K
Gustation, or the sense of taste, is intrinsically linked to the anatomical structures located on the tongue. This organ's surface, along with the entirety of the oral cavity, is adorned with stratified squamous epithelium. Evident on the tongue are elevated structures known as papillae (singular = papilla), which house the mechanisms for the transduction of gustatory stimuli. Four distinct types of papillae exist, each identified by their unique morphological attributes: the circumvallate,...
6.1K
Gastric Emptying01:16

Gastric Emptying

5.4K
Gastric emptying occurs when the stomach gradually releases chyme into the duodenum. When the stomach is distended, it triggers the release of gastrin, a hormone that promotes gastric acid secretion to aid in digestion. Additionally, stomach distension contributes to peristaltic waves that propel gastric contents toward the pyloric region. The gastroenteric reflex, on the other hand, primarily stimulates peristalsis in the intestines, facilitating the movement of contents further along the...
5.4K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Investigating bottlenose dolphin physiology using near-infrared spectroscopy.

The Journal of experimental biology·2026
Same author

Toothed whale auditory brainstem responses measured with a non-invasive, on-animal tag.

JASA express letters·2022
Same author

Measuring auditory cortical responses in Tursiops truncatus.

Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology·2021
Same author

When the human brain goes diving: using near-infrared spectroscopy to measure cerebral and systemic cardiovascular responses to deep, breath-hold diving in elite freedivers.

Philosophical transactions of the Royal Society of London. Series B, Biological sciences·2021
Same author

On the use of the Lloyd's Mirror effect to infer the depth of vocalizing fin whales.

The Journal of the Acoustical Society of America·2020
Same author

Fin whale acoustic presence and song characteristics in seas to the southwest of Portugal.

The Journal of the Acoustical Society of America·2020

Related Experiment Video

Updated: Apr 13, 2026

'Boden Food Plate': Novel Interactive Web-based Method for the Assessment of Dietary Intake
04:46

'Boden Food Plate': Novel Interactive Web-based Method for the Assessment of Dietary Intake

Published on: September 18, 2018

7.9K

Clicking for supper.

Peter Tyack1

  • 1School of Biology, University of St. Andrews, St. Andrews, United Kingdom.

Elife
|April 30, 2015
PubMed
Summary

Porpoises widen their sonar beam when hunting prey. This adaptation may help them capture prey more effectively by limiting escape routes.

Area of Science:

  • Marine biology
  • Bioacoustics
  • Animal behavior

Background:

  • Porpoises utilize echolocation for navigation and hunting.
  • Understanding sonar beam dynamics is crucial for marine mammal research.

Purpose of the Study:

  • To investigate how porpoises adjust their sonar beam in relation to prey proximity.
  • To determine the potential impact of sonar beam widening on prey escape.

Main Methods:

  • Acoustic monitoring of porpoise vocalizations.
  • Behavioral observations of porpoise-prey interactions.

Main Results:

  • Porpoises were observed to actively widen their sonar beam when in close proximity to prey.
  • The widened sonar beam may reduce the available escape windows for prey.
Keywords:
Phocoena phocoenabeam directionalitybuzzconvergent evolutionecholocationecologyneuroscienceprey capture

More Related Videos

Errors as a Means of Reducing Impulsive Food Choice
07:07

Errors as a Means of Reducing Impulsive Food Choice

Published on: June 5, 2016

9.3K
Introducing Clicker Training as a Cognitive Enrichment for Laboratory Mice
05:33

Introducing Clicker Training as a Cognitive Enrichment for Laboratory Mice

Published on: March 6, 2017

13.7K

Related Experiment Videos

Last Updated: Apr 13, 2026

'Boden Food Plate': Novel Interactive Web-based Method for the Assessment of Dietary Intake
04:46

'Boden Food Plate': Novel Interactive Web-based Method for the Assessment of Dietary Intake

Published on: September 18, 2018

7.9K
Errors as a Means of Reducing Impulsive Food Choice
07:07

Errors as a Means of Reducing Impulsive Food Choice

Published on: June 5, 2016

9.3K
Introducing Clicker Training as a Cognitive Enrichment for Laboratory Mice
05:33

Introducing Clicker Training as a Cognitive Enrichment for Laboratory Mice

Published on: March 6, 2017

13.7K

Conclusions:

  • Sonar beam modulation is a key hunting strategy in porpoises.
  • This behavior likely enhances foraging success by impeding prey escape.