extinctionthe permanent disappearance of a species from the earthScientists warn that the current rate of extinction is far higher than the natural background rate.NoteScientists warn that the current rate of extinction is far higher than the natural background rate.Elon.io is an online learning platformWe have an entire course teaching IELTS Vocabulary — Band 7+ grammar and vocabulary.Start learning IELTS Vocabulary — Band 7+ now