An Estimated 20% of the earth’s mature large sequoias have perished in the final 10 years due to serious wildfires, according to the nonprofit Help you save the Redwoods League. Illustration: Some of my learners are really mature and responsible, but the remainder of them act like preschoolers. /ˌsɪl.ɪ.kən ˈvæl.i/ https://mature52.com