'Buzz me in:' Bees wearing itty bitty QR codes reveal hive secrets

Several hundred bees in rural Pennsylvania and rural New York are sporting tiny QR codes on their backs. More than the latest in apiarian fashion, the little tags serve a scientific purpose: tracking when bees go in and out of their hives to better understand how long honey bees spend foraging for food outside of their hives.

source https://phys.org/news/2025-01-bees-itty-bitty-qr-codes.html