Add Yahoo as a preferred source to see more of our stories on Google. An elephant pictured at Chester Zoo in England. - Chester Zoo Professor Suzannah Williams wishes she didn’t have to spend her days ...

(CNN) — Professor Suzannah Williams wishes she didn’t have to spend her days analyzing poop samples. It’s a dirty job; but someone’s got to do it. Biodiversity is rapidly dwindling, with wildlife ...

Professor Suzannah Williams wishes she didn’t have to spend her days analyzing poop samples. It’s a dirty job; but someone’s got to do it. Biodiversity is rapidly dwindling, with wildlife populations ...