Scientists think birds may be using quantum physics and entanglement for migration

> Birds migrating thousands of miles each year without clear signposts have long puzzled observers. Scientists suspect that subtle biological tools help guide these remarkable bird migrations. “Night-migratory songbirds are remarkably proficient navigators,” said Dr. Jingjing Xu from the University of Oldenburg. The idea that certain proteins could **enable birds to interpret Earth’s magnetic field** has grown stronger over time.

> An electron shift from magnetism could trigger different chemical reactions that alert the bird’s visual system. Such a process ties into the operation of **cryptochrome**, a special light-sensitive protein. It sits in certain cells, where **changes in electron spin states might send navigational information.**

> Scientists propose that birds evolved a way to harness cryptochrome’s sensitivity under certain light conditions. This allows them to sense a magnetic signal that directs their flight path. They found that ultraviolet cones in the retina contain some forms of cryptochrome. These specialized cones might be crucial for capturing shifts caused by Earth’s field.

> The cryptochrome-based theory gained momentum due to evidence linking light activation with orientation behavior. Scientists find it fascinating that something akin to quantum behavior might occur in a bird’s eye. These electrons may form **an entangled pair, meaning their spins remain linked even in changing environments.**