Science with the squishy bits left in! 'Nasty Nature' will leave you howling for more! You'll have a whale of a time when you find out which is the stupidest animal in the world. Why vultures have bald heads. What kind of frog lives in the toilet. How vampire bats suck blood. If you think you can stomach the sick side of science, then read on as we go slithering into the animal world. Science has never been so horrible!