Though most live in fresh-water rivers, lakes, and wet-lands, the sea otter and the small-er marine otter are found in the Pac-ific Ocean.
River Otters pre-fer the fresh water of rivers, creeks, ponds, la-kes and swamps but can be fou-nd in coastal salt marshes like those aro-und the FSU Coastal & Mar-ine Lab. They live in dens call-ed holts that are dug into a river-bank or under the roots of tre-es.
The more diverse river otters live prim-arily in fresh-water rivers and streams, but are also found in coast-al salt-water areas. Sea otters, converse-ly, are found only in salt water and rare-ly go on land.
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