Amazing Cows

Scientists in the United Kingdom discovered that cows enjoy solving problems and even experience "Eureka!" moments (in which their heart rate speeds up, their adrenaline flows, and they jump) when they are successful--just like human beings. Cows also interact in socially complex ways, so that a herd of cows is very much like a pack of wolves, with alpha animals and complex social dynamics, including friendships that develop over time.