Scientists have already done numerous researches showing that cats are incredibly useful for our organism in all ways possible. They help us fight with loneliness and depression, give us someone to take care of and even cure our illnesses! However, the greatest thing about cats is that unlike dogs they don't need to perform any tricks or bring slippers to become the closest and dearest member of every family. And who else can make you laugh betther than a cat? Only lots of cats!