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TagHenrik Nouritsen

Earth magnetic field

Physicist: Migrating Birds’ Mysterious Quantum Sense Is “Spooky”

Birds like the European robin pack a $10,000 lock-in amplifier into a 2 micron cell

Earlier this year, the night-migratory European robin (Erithacus rubecola) made the headlines. Evidence has emerged that it may be using quantum mechanical effects to sense Earth’s magnetic field in order to migrate. Few expected to find quantum mechanical manipulation in the eye of a bird. Zoologist Eric Warrant, who was not involved in the research, says, that magnetic direction sensing is “the last sense we know, effectually, nothing about.” But this mysterious intelligence appears essential to migration, and hence, to the survival of many birds. So how, exactly, do they do it? Humans perceive the world around them with five senses — vision, hearing, taste, smell and touch. Many other animals are also able to sense the Earth’s magnetic field.…