A family has adopted Britain's biggest PUPPY - a real-life Scrappy-Do that is over 6ft and weighs more than a baby HIPPO. Arnie the Great Dane is only five months old and already tips the scales at a whopping 43kg (95lbs) - and is still growing. The massive canine is the biggest the team at Dogs Trust in Glasgow have ever cared for. He was put into care and now a family have fallen in with love and decided to adopt him - even though he dwarfs all of them when he stands at over 6ft on his hind legs.