'The story of Veronika is truly mind-blowing,' researcher says on cow's tool useEuropeTo display this content from YouTube, you must enable advertisement tracking and audience measurement. Accept Manage my choices One of your browser extensions seems to be blocking the video player from loading. Veronika the cow has been shown to pick up and use a broom. The researchers say her story significantly changes the way we should be thinking about cattle, and potentially about other animals as well. Antonio Osuna Mascaro, from the University of Veterinary Medicine in Vienna, spoke to us in Perspective.