Animals feed
5 eyes
Honeybees have five eyes: two large compound eyes and three small simple eyes called ocelli. The two kinds of eye provide different kinds of information about light and the surroundings.
3
Octopuses have three hearts: two supply the gills and one supplies the rest of the body. Their oxygen-carrying protein contains copper and turns blue when oxygenated.
Cubes
Wombats produce distinctly cube-like droppings, shaped inside the intestine rather than by a square opening. Research links the shape to differences in the mechanical properties of the intestinal wall.