Guano facts for kids

Guano is the excrement of bats and birds. This excrement is exceptionally high in nitrogen, phosphate, and potassium, three nutrients which are essential for plant growth. Therefore, it is often used as fertilizer, to make plants grow more quickly.

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Man-made Guano Island near Walvis Bay in Namibia
The mineral whitlockite, which is found in bat guano
Chincha Islands where guano was found in abundance. Mining was done on site and ships transported it to Europe.
Advertisement for guano, 1884
Workers load guano onto a cart in 1865
A large colony of Guanay cormorants on South Chincha Island of Peru in 1907
Chinese laborers stand on a partially extracted guano deposit in 1865
Histoplasmosis endemism map for the U.S.
The Ozark cavefish, a species that depends on bat guano as a source of food.