Tree Rings
Socially responsible bats, indoor light and clues in tree rings
18 Nov 2020
Science commentator Siouxsie Wiles joins Kathryn to talk about how vampire bats physically distance when sick, how researchers have developed environmentally friendly materials that could harvest… Audio
Loneliest Tree
19 Dec 2013
Dendrochronologist Jonathan Palmer finds a surprising Christmas connection when he counts the tree rings of the world's loneliest tree. Audio