'Crazy' ants that kill birds eradicated from Pacific atoll

In this photo provided by the U.S. Fish and Wildlife Service, yellow crazy ants are seen in a bait testing efficacy trial at the Johnston Atoll National Wildlife Refuge in December, 2015. An invasive species known as the yellow crazy ant has been eradicated from the remote U.S. atoll in the Pacific. The U.S. Fish and Wildlife Service announced Wednesday, June 23, 2021, that the ants have been successfully removed from the refuge. (Robert Peck/U.S. Fish and Wildlife Service via AP)