Meet Leon Trotsky, a three-week-old piglet who's just learned to trot using a couple of hind wheels. He had his "femur both broken and dislocated, plus an injured hock and ligament damage on the other side" after his injured mother fell on him not long after he was born, so now he has this cart to keep weight off his hind legs. He's living at an animal sanctuary in Victoria, Australia, and doing just fine. [Laughing Squid]