Curiously, the same thing had happened over about the same timescale to the wreck of the German battleship Bismarck, sunk at a depth of 4,791 metres (15,719 ft) on the other side of the Atlantic. The mud around the ship was found to contain hundreds of different species of animals. The sudden explosion of life around Titanic may be a result of an increased amount of nutrients falling from the surface, possibly a result of human overfishing, eliminating fish that would otherwise have consumed the nutrients.[121]