A 5.3-million‑year‑old whale graveyard has been found on the floor of the Indian Ocean (opens in new tab)

When a whale dies, a very special natural phenomenon can come alive. The carcass might float at the surface for some time, attracting sharks and other predators. As it becomes weathered, it may start to sink, falling through the water until it eventually settles on the seafloor, where deep-sea scavengers feast upon it.