Scientists have discovered that taste buds are throughout your body. They discovered that there are taste buds on male testicles and anuses.

The scientists at the Monell Chemical Senses Center in Philadelphia also discovered that these taste buds have a major role in reproduction.

Their accidental discovery showed that male mice were rendered infertile when they were missing the proteins GNAT3 and TAS1R3 or were given a substance to block them from working.

Having only one of the proteins means the male mice can still breed, but it turned out that when both of the proteins were missing, the sperm struggled to swim and the testes became malformed.

‘The males are sterile, their sperm count is low, and spermatozoa are not developed properly,’ said researcher Bedrich Mosinger told Business Insider.