A meow may massage the heart, but a purr absolutely soothes the soul. The cat is the only animal that makes a musical humming sound when it is happy. All cat lovers have enjoyed the blissful moment of a purring lap bound feline. The entire animal vibrates with joy. Purring is usually a sign of cat

Do our four-legged friends really see in black and white and what does it actually mean when they're wagging their tails?   1) Dogs do get jealous
Dogs suffer from jealousy and are just as likely to turn into a green eyed monster as humans, according to scientists in California.