Magnetoreception is a sense which allows an organism to detect the Earth's magnetic field. Animals with this sense include some arthropods, molluscs, and vertebrates (fish, amphibians, reptiles, birds, and mammals). The sense is mainly used for orientation and navigation, but it may help some animals to form regional maps.

Several mechanisms have been proposed that might underlie magnetic-field detection. Most recent research, however, has focused on three main ideas: electromagnetic induction, magnetite, and chemical magnetoreception. Electromagnetic induction

Earth's magnetosphere is a guiding beacon for a variety of species capable of sensing its presence. Physicists have now discovered two types of sensors in animals that can detect magnetic fields close to the quantum limit, information that could improve our own design of magnetometer devices.

2008年3月1日 · But how animals sense magnetic fields remains a hotly contested topic. Whereas the physical basis of nearly all other senses has been determined, and a magnetoreception mechanism has been identified in bacteria, no one knows with certainty how any animal perceives magnetic fields.

2017年10月23日 · We introduce and discuss 3 concepts that attempt to address this question: (1) a mechanically sensitive magnetite-based magnetoreceptor, (2) a light-sensitive chemical-based mechanism, and (3) electromagnetic induction within accessory structures.

2021年9月16日 · What is magnetoreception? The ability to perceive magnetic fields, or magnetoreception, is one of the most studied senses in recent years. Although research on human beings is still in its early stages, work in the animal world has demonstrated the existence of this sense in some living beings.

2015年12月5日 · Magnetoreception is the ability of certain organisms to detect magnetic fields in order to get a sense of direction or location. Many animals have shown the ability to use the Earth's magnetic field to orient themselves and gain information about their surroundings.

2020年5月19日 · The secrets behind magnetoreception—that is, the ability of some animals to sense Earth's magnetic field—are beginning to gradually unravel, thanks in part to a new study that demonstrates ...

2007年4月2日 · We propose a magnetosensory organ that consists of a system of radical pairs that are orientationally ordered in the eye. We propose that a photoreceptor is part of the radical-pair system and that its sensitivity is modulated through …

2021年6月23日 · Arguably the greatest mystery in sensory biology is magnetoreception — how animals sense Earth’s magnetic field and use it as a compass to determine their spatial orientation.