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'''Earth''' ({{IPAEng|ɜ(ɹ)θ}}) is the third [[planet]] from the [[Sun]] and is the largest of the [[terrestrial planet]]s in the [[Solar System]], in both [[diameter]] and [[mass]].  It is also referred to as "the Earth", "Planet Earth", "[[Gaia (mythology)|Gaia]]", "[[Terra (mythology)|Terra]]",Note that by [[International Astronomical Union]] convention, the term "Terra" is used for naming extensive land masses, rather than for the planet Earth. [http://planetarynames.wr.usgs.gov/jsp/append5.jsp] Gazetteer of Planetary Nomenclature, USGS, and "the [[World]]".

'''Earth''' is the third [[planet]] from the [[Sun]] and is the largest of the [[terrestrial planet]]s in the [[Solar System]], in both [[diameter]] and [[mass]].  It is also referred to as "the Earth", "Planet Earth", "[[Gaia (mythology)|Gaia]]", "[[Terra (mythology)|Terra]]",Note that by [[International Astronomical Union]] convention, the term "Terra" is used for naming extensive land masses, rather than for the planet Earth. [http://planetarynames.wr.usgs.gov/jsp/append5.jsp] Gazetteer of Planetary Nomenclature, USGS, and "the [[World]]".

Home to millions of [[species|species]] How many species are there on earth?

Home to millions of [[species|species]] How many species are there on earth?