Rare snail with anti-clockwise shell struggles to find mate
A garden snail in the UK was born with a rare genetic mutation, causing its shell to spiral anti-clockwise. This lowered its chances of finding a potential mate, since snails mate face-to-face, sliding past each other on the right-hand side for their genitalia to meet. To copulate, it must beat one in million odds to find another 'sinistrally mutated' snail.