Brown Swiss in Austria has been discovered using tools in different ways – something only ever seen in humans and chimpanzees ...

Add Yahoo as a preferred source to see more of our stories on Google. Photography by Rachel Pickus Pashun George and her sister grew up scratching their mother’s back before bed. Now, they charge $130 ...

A cow’s clever behavior using back-scratching tool forces scientists to rethink intelligence of animals - This type of ...