Add Yahoo as a preferred source to see more of our stories on Google. A new study has challenged assumptions about livestock intelligence by documenting the first known instance of a cow using tools.

(CNN) — How does a cow scratch an itch on its back? An Austrian cow named Veronika has a solution that could change how we view livestock. For the past decade, Veronika has been observed by her owner ...

A clever cow called Veronika is the first ever to be recorded using tools – including a brush to scratch her back. The old Swiss Brown cow has astonished scientists in Austria with her ability to use ...