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Sensory Evolution on the ThresholdAdaptations in Secondarily Aquatic Vertebrates$
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J. G. M. Thewissen

Print publication date: 2008

Print ISBN-13: 9780520252783

Published to California Scholarship Online: March 2012

DOI: 10.1525/california/9780520252783.001.0001

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PRINTED FROM CALIFORNIA SCHOLARSHIP ONLINE (www.california.universitypressscholarship.com). (c) Copyright University of California Press, 2021. All Rights Reserved. An individual user may print out a PDF of a single chapter of a monograph in CALSO for personal use.date: 20 September 2021

Magnetoreception

Magnetoreception

Chapter:
(p.316) (p.317) 19 Magnetoreception
Source:
Sensory Evolution on the Threshold
Author(s):

Michael H. Hofmann

Lon A. Wilkens

Publisher:
University of California Press
DOI:10.1525/california/9780520252783.003.0019

This chapter focuses on magnetoreception in animals. It provides a brief overview of the physics of the Earth's magnetic fields, followed by a description of animals known to sense these fields. Magnetic sense is present in many invertebrates such as bees, mealworm beetles, termites, lobsters, and marine mollusk. Migratory vertebrates that respond to magnetic fields include elasmobranchs, salmon, trout, eels, and tuna. Amphibians, birds, and mammals such as the blind mole rat use magnetic cues for navigation. The chapter also identifies sea turtles and cetaceans as the only secondarily aquatic tetrapods that have magnetic sense.

Keywords:   magnetoreception, magnetic fields, magnetic sense, navigation, sea turtles, cetaceans

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