Cows can get lonely when not with best friends

275x250.jpgCows not only have best friends, but also get stressed when they're not with them, academic researchers have discovered.

Boffins from the University of Northampton say they have found proof that cows are more social than previously thought after conducting a series of tests.

Doctoral student Krista McLennan looked at the heart rate and cortisol levels of cows when in a variety of environments, including a period of isolation.

It was found the cows were more relaxed when with a 'preferred partner' compared to being with a random other cow or alone.

The findings are said to be important to the dairy industry because the stress levels of cows can strongly impact their milk yield… more than whether they are finding something funny anyway.
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