Declared extinct in 2025: A look back at some of the species we lost

Declared extinct in 2025: A look back at some of the species we lost

Some species officially bid us farewell this year. They may have long been gone, but following more recent assessments, they’re now formally categorized as extinct on the IUCN Red List, considered the global authority on species’ conservation status. We may never see another individual of these species ever again. Or will we? Slender-billed curlew This grayish-brown migratory waterbird, known to breed in Siberia and the Kazakh Steppe, and migrat…