Beyond the looks: The amazing world of of the eerie-looking aye-eye and other "repulsive" creatures

Aye-ayes, Earth's largest nocturnal primates, are so visually off-putting that some people consider them bad luck and kill them on sight. (Photo by Joel Sartore / National Geographic Photo Ark)

Have you ever considered that the creatures we find most repulsive might actually be the ones we should appreciate most? National Geographic's recent article "The…