Meet Einstein, The World's Smallest Stallion!

Meet Einstein, the world's smallest stallion! When he was born on April 22, 2010, he weighed only 6 pounds and was no taller than a box of cereal: the smallest horse ever born. Now fully grown, he's about 2 feet tall and 80 pounds - the size of a Golden Retriever.

His parents were normal-sized champion miniature horses. His mother is 32 inches tall and his dad measures 30 inches.

He currently lives with 2 Dwarf Nigerian goats, a sulcata Tortoise, and a Boxer in Barnstead, New Hampshire.

He even wrote a New York Times best-selling book (with help from his humans, Charlie Cantrell and Dr. Rachel Wagner): "A Friend For Einstein: The Smallest Stallion." He occasionally goes to schools to talk about his book.

Even if you've seen Einstein before, you might not know that he suffered a spinal cord injury when he was only 2 months old. From Einstein's Facebook page: "He was rushed to Cornell University in New York, where he set another world record as the only horse ever operated on by a canine neurosurgeon. Einstein was so tiny; the equine surgeon was unable to perform the operation. The canine surgeon who performed the life saving operation on Einstein had written textbooks on spinal surgery on dogs as small as Pomeranians and Chihuahuas. 20 pound and 17 inch Einstein seemed large in comparison. After 8 grueling hours of surgery, 5 screws and 7 pins held Einy’s spine together. He was standing the morning after the surgery and after two months in the intensive care unit, he pranced out on the stage of the Oprah Winfrey Show in Chicago. Today he runs and plays so much, most people have no idea he sustained any injury at all. We remain eternally grateful to the amazing minds at Cornell that saved our little horse’s life."