Factoid

31 species have been listed on the extinct list by the International Union for Conservation of Nature's (IUCN) Red List of Threatened Species. The list includes the lost shark, listed as critically-endangered or possibly-extinct, as it was last recorded in 1934. The lost shark's habitat in the South China Sea, one of the world's most-exploited marine regions, has been extensively fished for more than a century.


  • Out of the 17 freshwater fish species in Lake Lanao and its outlet in the Philippines, 15 are now extinct and two are critically endangered or possibly extinct, the ICUN announced. The extinctions were caused by predatory introduced species as well as overharvesting and destructive fishing methods.

In Central America, three frog species have now been declared extinct. Another 22 frog species across Central and South America are listed as critically endangered or possibly extinct — with the driver of the declines identified as chytridiomycosis disease, an infectious disease caused by a fungus that affects amphibians worldwide.




  • In addition, all of the species of freshwater dolphin in the world are now threatened with extinction, with the addition of the tucuxi, a freshwater dolphin species found in the Amazon river system to the list, according to the ICUN. The tucuxi population has been "severely-depleted" by deaths linked to fishing gear, damming rivers and pollution.


  • In the plant world, nearly a third of Oak trees around the world are threatened with extinction, with the highest numbers in China and Mexico.

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