Animals feed
272+ yrs
Yes. A 2016 study estimated that Greenland sharks live at least 272 years, and the largest shark studied may have been around 392 years old, give or take 120 years. They are the longest lived vertebrates known.
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.