His tiny proportions may be more suitable for a human baby, but they are tiny for a horse, even a miniature breed like Einstein.
Dr Rachel Wagner, Einstein's co-owner, claims the Guinness Book of Records lists the smallest newborn horse as weighing just 9lbs.
Breeders say that unlike the current record holder, Thumbelina, Einstein shows no signs of dwarfism - he is just a tiny horse.
See more pictures at The Daily Mail. Link -via Fark