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lutra
Lutra is a genus of otters. It is one of seven in the subfamily Lutrinae.
==Taxonomy and evolution==
The genus includes the following living species:
*''Lutra lutra'' – European otter
*''Lutra sumatrana'' – hairy-nosed otter
*''Lutra nippon'' – Japanese otter - recently extinct
The genus most likely evolved in Asia during the late Pliocene epoch; the oldest fossil belonging to the genus is of the species ''Lutra palaeindica'', and dates from the late Pliocene.
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