The world’s smallest dog
He is a third of the size of an average guinea pig, and weighs in at just a few ounces – but this tiny puppy could be a big deal when it comes to world records.
The miniscule chihuahua-Jack Russell cross – appropriately named Tom Thumb by its owners – is a serious contender for the title of being the smallest dog on the planet.
Little Tom was born just three weeks ago as part of a surprise litter to mum Spice, a chihuahua.
And he is unlikely to get much bigger – with some previous experience of rearing puppies through their early weeks, the couple are convinced that Tom is almost fully grown now.
With his tan-and-black markings, Tom Thumb measures less than four inches from the tip of his nose to the end of his tail and only weighs about three ounces.
Read more and see more pictures: The adventures of Tom Thumb: The tiny puppy set to be the world’s smallest dog