A never-before-seen picture of eagle migrations
In 1899, scientists began tracking avian migration by placing a small ring with an identifier around birds' ankles. Researchers then had to recapture the birds elsewhere, leaving the journey between those points a mystery. Today, GPS tags allow researchers to see every stage of bird migration. The tags are small, have long-lasting batteries and solar panels, and track dozens of metrics. Migration…
We haven't written up this one. Phys.org has the full story — the link below goes straight to it.
