The Emperor of All Maladies

I learned a lot of things this week. I'm going through a book called The Emperor of All Maladies. It's essentially a biography of cancer, like the disease cancer. A male giraffe will actually headbutt the female and bump into her bladder until she pees urinates. And then he tastes the urine of his potential female mate to see if she's ready or if she's in heat. That is disgusting.