Bioacoustician Laura Kloepper trudges through mountains of guano as she works to decode the mysterious communication of bats. Plus, what a closer look at Uranus and Neptune could tell us about our pale blue dot. And useing pollen and spores fossilized in coal to study the environment millions of years ago.
As the world works together to lower carbon emissions, what role will the United States play in fighting climate change? Plus, some small bees—the size of a grain of rice—drink the sweat and tears of animals.