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Related Experiment Video

Updated: Jul 30, 2025

Training Rats to Voluntarily Dive Underwater: Investigations of the Mammalian Diving Response

Training Rats to Voluntarily Dive Underwater: Investigations of the Mammalian Diving Response

Published on: November 12, 2014

Free-diving sharks.

Mark Meekan¹, Adrian Gleiss²

¹Australian Institute of Marine Science, University of Western Australia, Oceans Institute, MO96, Crawley, WA, Australia.

Science (New York, N.Y.)

|May 11, 2023

Summary

This summary is machine-generated.

Hammerhead sharks conserve oxygen during deep dives by holding their breath. This behavior helps them manage body temperature in cold ocean depths.

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Area of Science:

Marine Biology
Animal Physiology
Behavioral Ecology

Background:

Hammerhead sharks are apex predators in marine ecosystems.
Understanding their physiological adaptations is crucial for conservation.
Thermoregulation is vital for ectothermic animals in varying water temperatures.

Purpose of the Study:

To investigate the respiratory behavior of hammerhead sharks during dives.
To determine the role of breath-holding in thermoregulation for this species.

Main Methods:

Utilizing advanced tagging technology to monitor dive profiles and physiological parameters.
Analyzing oxygen consumption rates and body temperature fluctuations in situ.
Observing behavioral patterns associated with breath-holding during descent and ascent.

Main Results:

Hammerhead sharks exhibit voluntary breath-holding during deep dives.
A significant correlation was found between breath-holding duration and reduced metabolic rate.
Body temperature was effectively maintained within a narrower range during dives utilizing this strategy.

Conclusions:

Breath-holding is a key physiological mechanism for thermoregulation in hammerhead sharks.
This adaptation allows hammerheads to exploit deeper, cooler waters while managing energy expenditure.
Further research into shark respiratory physiology can inform conservation efforts.