Published：May 28, 18:00Last updated：Jun 8, 18:34

Pigeons Use Liver for Magnetic Navigation

May. 28, 2026 18:00

A study suggests pigeons might use their liver to navigate, adding to theories about how birds detect Earth's magnetic field. Researchers are exploring this potential gut-based mechanism.

Summarized

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Jun. 7, 2026 08:00

A new study proposes that a pigeon's liver may play a role in its ability to navigate long distances. Pigeons have historically been used for messaging due to their homing instincts. The research explores an unexpected biological mechanism behind their navigation skills.

Jun. 8, 2026 18:34

Research reveals that pigeons rely on iron-rich immune cells in their livers to sense Earth's magnetic field. These cells act as internal compasses, helping birds navigate long distances. The findings challenge previous theories about avian magnetoreception and could explain how other animals, like sharks, navigate without light.

A groundbreaking study reveals that pigeons may use their livers as an internal compass to navigate Earth's magnetic fields, challenging long-held theories about avian orientation. The research, conducted by an international team including German scientists, suggests specialized iron-rich immune cells in the liver play a crucial role in this biological navigation system. This discovery could explain how birds maintain directional accuracy even in low-visibility conditions. The Independent+2

🧭 Liver's Unexpected Role

The study found that disrupting liver function in pigeons impaired their homing ability, while previous focus on beak or eye mechanisms showed no similar effect. Researchers observed that iron-containing cells in the liver align with magnetic fields, potentially acting like microscopic compass needles. This organ's central location makes it ideal for processing directional information. Deutsche Welle+1

🔬 Cellular Compass Mechanism

Iron-rich immune cells called macrophages appear to be key players in this navigation system. When these cells were chemically altered, pigeons showed significant difficulty returning to their lofts. The liver's high vascularity and iron metabolism suggest it could detect subtle magnetic variations more effectively than neural tissues. Russian Gazette+1

🌐 Implications for Animal Navigation

The findings may extend beyond pigeons, offering insights into how other species like sharks and sea turtles navigate vast distances. This liver-based mechanism could represent an evolutionary adaptation for animals requiring precise long-distance orientation without visual cues. Future research will explore whether similar systems exist in migratory birds. Huanqiu

pigeonsGerman research teamavian magnetoreceptionEarth's magnetic fieldiron-rich immune cells