TO GO WITH AFP STORY BY Julie JAMMOT "Scientists seek miracle pill to stop methane cow burps"
Postdoctoral researcher Paulo de Meo Filho demonstrates how he samples cow stomach fluids while studying ways to reduce methane emitted by cow burps at UC Davis in Davis, California on October 23, 2024. Paulo de Meo Filho, a postdoctoral researcher at University of California, Davis, is part of an ambitious experiment aiming to develop a pill to transform cow gut bacteria so it emits less or no methane. (Photo by NOAH BERGER / AFP)