Scientists Discover Which Side Cats Prefer to Sleep On

Scientists have found out which side cats most commonly sleep on. It turned out that 2/3 choose the left side. And it's not just about comfort: this way, they ensure their safety by waking up with the right hemisphere active when needed. It is responsible for threat perception and coordination of quick movements. This means that even at home, cats care about their survival. Scientists learned this by watching several hundred videos of cats on YouTube.