friggin wild. birds navigate by chemical compass, polarized by electron spin driven by the Earth's magnetism. the electrons are in the bird's eyes and are apparently observed visually as a spot of brightness.
https://music.youtube.com/watch?v=k4a0nrSG1c0&si=eZtVOxby-9mAL9K8

Comments

Posting Rules

  • Be respectful to others
  • No spam or self-promotion
  • Stay on topic
  • Follow Bluesky's terms of service