TIL of a double little toenail which is a sixth toenail on your pinky toe - usually from a sixth toe in the womb. It’s a recessive trait that usually skips a few generations

https://ryanfootandankleclinic.com/2019/04/16/double-pinky-toenails-what-is-an-accessory-nail-foot-surgeon-in-concord-nc/

https://www.reddit.com/r/todayilearned/comments/1669n8c/til_of_a_double_little_toenail_which_is_a_sixth/