How far would you go to feed your kids?

I know that most mothers will go tremendously far to keep their children alive (well, mostly). But some time ago I was amazed after reading a newsarticle about a women who was trapped in a collapsed building together with her baby. Stuck without food or water she kept her young child alive by cutting herself with a knife and feeding her baby small amounts of her own blood.

While reading Nature magazine, I came across a comparable example. It seems a certain type of Amphibian 'worms' feed young their own flesh. The little baby worms scrape the fatty skin from their mum's back when they are hungry!. Read the article here