London: A tiny pooch in the UK that stands at only four inches tall and weighs a mere 312g may be Britain`s smallest dog.
Tyson, a Lhasa-Chi (cross between a Lhasa Apso and a Chihuahua) was born earlier this year, as part of a litter of five.
The pooch was rejected by his larger siblings at birth - forcing owner Rosemarie McLinden to hand feed Tyson every two hours using a pipette.
McLinden and husband Antony Corr, in Lincolnshire, became anxious when they noticed that their new pint-sized pet began to lose weight after its birth.
The couple rushed Tyson to a vet who couldn`t find anything wrong with the canine but gave the pair special feeding instructions as a precaution, `express.Co.Uk` reported.
Five-month-old Tyson has now grown to become a fit and healthy young pup but remains only a quarter of the size of his four brothers and sisters.
"I`ve been doing a lot of research and I can`t see a smaller dog anywhere in the entire country," McLinden said.
Pilgrim Veterinary Surgery Vet Sharon Crocket - who treated Tyson said: "He is so tiny, even for a part Chihuahua. He could possibly be the smallest dog in the UK."