Things That Make You Go 'Ewwww'

Here's an article that appeared in the science column in the 'Metro' newspaper.

If you think giving birth is painful then spare a thought for the hyena. Their birth canal narrows to about 2cm in diameter, and often rips as a cub squeezes through. The narrowing is caused by androgen - a male sex hormone - in the female's body during pregnancy, scientists have found. The mothers give their babies high levels of the hormone to make them more aggressive when fighting for food. US experts said; 'Giving birth through a penis isn't a trivial problem'.

I never thought I could feel so sorry for hyenas...