This fly’s larvae tunnel inside bitter-tasting greens like arugula and kale, leaving squiggly marks behind. The plants fight back with toxic chemicals. So before laying her eggs, the fly mom digs into a leaf and slurps its sap – a taste test to find the least toxic spot for her offspring.
We hope you enjoy this first look at our newest episode. You can start sharing it with other science fans on Tuesday, April 6 from YouTube. Thanks!