CrowdScience - Are you more efficient than a rabbit? - ÃÛÑ¿´«Ã½ Sounds

CrowdScience - Are you more efficient than a rabbit? - ÃÛÑ¿´«Ã½ Sounds
Are you more efficient than a rabbit?
Which uses the least energy to get from A to B: human or rabbit?
Which uses the least energy to get from A to B: human or rabbit?