Ned needs a 1 in 40,000 partner because he must also find another left spiralled snail to mate with.
This is a companion discussion topic for the original entry at https://www.stuff.co.nz/environment/360806792/ned-left-spiralled-snail-hunt-true-love
This is a companion discussion topic for the original entry at https://www.stuff.co.nz/environment/360806792/ned-left-spiralled-snail-hunt-true-love