11 Surprises Of Nature That Will Make Anyone Say "Really?" (Drunk Birds Are Totally Worth Looking At)

Cows make friends and choose the best ones too. Real friendship exists in the animal world too and the friendship between cows is a great example of this. British biologist Krista McLennan came to the conclusion that cows can get attached to other cows from their childhood and they feel stressed out when they are separated. Scientists say that keeping an eye on cows' friendships and placing cow-friends together can lead to increased milk production. It can also relieve the animal's suffering when a cow is placed in a new herd. © Pixabay, © Pixabay