- Back-scratching bovine leads scientists to reassess intelligence of cows The Guardian
- Do Cows Use Tools? This One Does. The New York Times
- Researchers identify tool use in a pet cow, indicating livestock might be smarter than thought CNN
- Watch Veronika the brown cow pick up a rake to scratch herself—a scientific first National Geographic
- Cows may be smarter than we thought. This one uses a brush to scratch herself. The Washington Post