Sperm have an extremely poor sense of direction. Who knew?
I guess the fact that only one per cent of the 300 million sperm released by a man manage to reach the uterus, while just a few dozen reach the egg, should have been somewhat of an indication.
The Daily Mail reports that a joint study by the University of Warwick and University of Birmingham has provided insight into how sperm travel and how to improve sperm selection. So, we all know that it takes only one sperm to fertilise an egg (the rest suffer the dismal death of the underachiever); the sperm swim through the cervix, into the uterus and along the fallopian tubes.
And here’s where it gets interesting…
…sperm avoid the ‘middle lane’ of the female reproductive tract and instead crawl along the channel walls. They also struggle to turn sharp corners and crash into the walls and each other.
I don’t know about y’all but I really did laugh out loud when I read this. Poor little sperm: unintentionally demolishing each other en route to egg.