Several bird species are threatened with 'extinction'. = Several bird species are 'on the brink of extinction'.
Mass 'extinctions' of prehistoric animals are known to have occurred.
the 'extinction' of all life in the region
(..) (sings) Oh, I'm decrypting nuclear codes and you don't want me to. Come and get me. Wake up! Thor! Extinction. Cellular cohesion will take a few hours, but we can initiate the consciousness stream. We're uploading your cerebral matrix...now. I can read him. He is dreaming. (..)2015 Avengers: Age of Ultron
(..) How is humanity saved if it's not allowed to...evolve? With these? These puppets? There's only one path to peace. The Avengers' extinction. I had strings, but now I'm free. ...There are no strings on me, no strings on me... "There are no strings on me." All our work is gone. (..)2015 Avengers: Age of Ultron