Like humans, cows (cattle) form close friendships and choose to spend much of their time with 2-4 preferred individuals. They also hold grudges for years and may dislike particular individuals.Cows display emotions and have been shown to produce more milk when they are treated better and as individuals.Cattle get excited when they solve problems. When faced with a challenge of finding out how to open a door to reach food, their heartbeat went up, their brainwaves showed excitement, and some even jumped into the air.Cows show their excitement when let out into a field after long periods confined indoors