This plant has evolved with the knowledge* that the usual mammal waste products, feces and urine, are very high in nitrogen. So, it has become a toilet.
Original Credit: Ch'ien Lee
The plant [video] is big, almost the size of a football, The lid is covered in nectar, which attracts the tree shrew with a yummy snack; the bowl is shaped precisely to catch the shrew's poop. There is even some thought that the nectar might have laxative properties, because it certainly collects a lot of the stuff, which provides needed nitrogen for the plant.I love evolution. All's for the best in the best of all possible worlds.
* Yes, I know the plant doesn't actually have 'knowledge'. I can't think of another way to put it at the moment.