there-are-no-known-eukaryotes-which-never-had-mitochondria

= There are no known eukaryotes which never had mitochondria

As of 2020, there are no known <eukaryotes without mitochondria>[eukaryotes which have never had mitochondria].

Known <eukaryotes without mitochondria>, which are very rare, have lost mitochondria they previously had.

Having mitochondria appears to be a requisite for being an eukaryote. This is one of the central thesis of <Power, Sex, Suicide by Nick Lane (2006)>.

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