<Table> <Tr> <Th_colspan="2"> North American river otter </Th> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Td_colspan="2"> A pair at the San Francisco Zoo in 2005 </Td> </Tr> <Tr> <Th_colspan="2"> Conservation status </Th> </Tr> <Tr> <Td_colspan="2"> Least Concern (IUCN 3.1) </Td> </Tr> <Tr> <Th_colspan="2"> Scientific classification </Th> </Tr> <Tr> <Td> Kingdom: </Td> <Td> Animalia </Td> </Tr> <Tr> <Td> Phylum: </Td> <Td> Chordata </Td> </Tr> <Tr> <Td> Class: </Td> <Td> Mammalia </Td> </Tr> <Tr> <Td> Order: </Td> <Td> Carnivora </Td> </Tr> <Tr> <Td> Family: </Td> <Td> Mustelidae </Td> </Tr> <Tr> <Td> Genus: </Td> <Td> Lontra </Td> </Tr> <Tr> <Td> Species: </Td> <Td> L. canadensis </Td> </Tr> <Tr> <Th_colspan="2"> Binomial name </Th> </Tr> <Tr> <Td_colspan="2"> Lontra canadensis (Schreber, 1777) </Td> </Tr> <Tr> <Th_colspan="2"> Subspecies </Th> </Tr> <Tr> <Td_colspan="2"> <P> see text </P> </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th_colspan="2"> Synonyms </Th> </Tr> <Tr> <Td_colspan="2"> <P> Lutra canadensis </P> </Td> </Tr> </Table> <Tr> <Th_colspan="2"> North American river otter </Th> </Tr> <Tr> <Td_colspan="2"> A pair at the San Francisco Zoo in 2005 </Td> </Tr> <Tr> <Th_colspan="2"> Conservation status </Th> </Tr>

Where do river otters go in the winter