Cats are pretty adorable! Those big eyes, fluffy paws and cheeky personalities mean that most people find felines cute. But what is the science behind this reaction? Neuroscientist Professor Morten Kringelbach reveals how special technology can track what happens to signals in the brain in response to sounds and images of babies and small animals. In just a thousandth of a second, our brain decides that something is cute. This almost instantaneous cuteness reaction is thought to be a deep-rooted evolutionary feature of humans, encouraging us to look after young babies and animals to help species to survive. Cats (and other fluffy pets) can bring us so much joy, so next time you find yourself smiling at a cat video or your beloved pet, make sure to spread the love and bring someone else a dose of happiness.