Outline of life forms

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Life form (also, life-form and lifeform) – entity that is living,[1][2] such as plants (flora) and animals (fauna). It is estimated that more than 99% of all species that ever existed on Earth, amounting to over five billion species,[3] are extinct.[4][5]




See also[edit]


  1. ^ "life form". World English Dictionary. Dictionary.com. 2009.
  2. ^ "life form". Online Oxford Dictionary of English. Oxford University Press. 2005.[permanent dead link]
  3. ^ Kunin, W.E.; Gaston, Kevin, eds. (31 December 1996). The Biology of Rarity: Causes and consequences of rare—common differences. ISBN 978-0412633805. Retrieved 26 May 2015.
  4. ^ Stearns, Beverly Peterson; Stearns, S. C.; Stearns, Stephen C. (2000). Watching, from the Edge of Extinction. Yale University Press. p. preface x. ISBN 978-0-300-08469-6. Retrieved 30 May 2017.
  5. ^ Novacek, Michael J. (8 November 2014). "Prehistory's Brilliant Future". New York Times. Retrieved 2014-12-25.

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