Trees are old \u2013 they transcend human generations \u2013 but are they the oldest living things on Earth? This story began in June 2017 when we explored a question sent in from CrowdScience listener William. Many of you got in touch after the programme with questions of your own. So we\u2019re revisiting our trees programme but also exploring another question from listener James, who wants to know what, pound for pound or gram for gram, is the strongest animal alive on Earth today? Marnie Chesterton wrestles with one of them and \u2013 spoiler alert \u2013 it\u2019s not a gorilla.
Presenter: Marnie Chesterton\nProducers: Jen Whyntie
(Photo: Kumbuka, a 15-year-old western lowland gorilla. Credit: Oli Scarff/Getty Images)