Climate change may be helping rat populations soar. Halley Brown examines how the faster a city warms, the larger their increase in rats—and considering these rodents cost the U.S. an estimated $27 billion in damage each year, that's cause for concern: https://on.natgeo.com/3KsN99M | National Geographic Science

Ever seen a rat pluck a bat from mid-air and crunch down on it? At multiple study sites in labs and caves, researchers have captured rare footage of rats using different strategies to successfully intercept bats in flight, all in total darkness. The videos reveal the surprising dynamics of bat-rat relationships—and suggest how human activity is fueling these interspecies conflicts: https://on.natgeo.com/47PaYAu | National Geographic Science