The
ostrich or
common ostrich is either one or two species of large flightless
birds native to Africa, the only living member
of the genus
Struthio, which is in the ratite family. Some analyses indicate
that the Somali ostrich may be better considered a full species separate from
the Common Ostrich, but most taxonomists consider it to be a subspecies. The
ostrich shares the order Struthioniformes with the kiwis, emus, rheas, and cassowaries.
However, phylogenetic studies have shown that it is the basal extant member of Palaeognathae
and is thus equally closely related to flighted tinamous.
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