'Magnetic fields are really fun to think about. It’s incredible that animals can activate their brain in this way, and we can’t.”
, analyze white-throated sparrows and their ability to activate cluster N at night while migrating and make it go dormant while they rested during a stopover.Western Communications/Jeff Renaud“This brain region is super important for activating the geomagnetic compass, especially for songbirds when they migrate at night,” said Brodbeck.
“Magnetic fields are really fun to think about because they’re invisible to humans. We can’t see them or sense them, but most animals perceive them in some way. For birds, using Earth’s magnetic field to know if they’re going towards a pole or towards the equator is obviously really helpful for orientation and migration. It’s incredible that they can activate their brain in this way, and we can’t,” she added.
“If we want to understand bird migration or how other animals move from one place to another, we need to know how they do it. And more importantly, we need to know what we’re doing , as humans, that might influence them.” “Birds don’t just use their magnetic compass. We know they pay attention to the Sun and the stars as cues too. And we also know that things like lights at night, or windows in buildings, and all these things that we put in the world disrupt their migrations,” he added. “This type of basic research informs us and lets us know the full suite of ways that animals perceive the world when they’re migrating and what we as humans need to do to minimize our impact.
This article was written and edited by a human, with the assistance of Generative AI tools. Find out more about our policy on AI-powered writingCluster N is a region of the visual forebrain of nocturnally migrating songbirds that supports the geomagnetic compass of nocturnal migrants. Cluster N expresses immediate-early genes , indicating neuronal activation. This neuronal activity has only been recorded at night during the migratory season.
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