How do trees make oxygen? How do they grow? How do evergreens stay green all year? Why do tree leaves change color? How long can trees live? We’re branching out to tackle all these questions in this episode.
When a tiny beetle starts destroying farmers’ fields in Australia, scientists decide to bring in a giant toad to bite back. But they never predicted what would happen next. In this episode, science writer Sheril Kirshenbaum tells a story of science gone wild. Music in this episode is by Podington Bear.
This question has been a mystery for millennia. Turns out there’s a name for the phenomenon: photic sneeze reflex.