Eurasian otter
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The Eurasian otter, also known as the European otter, Eurasian river otter, European river otter, common otter, and Old World otter, is a semiaquatic mammal native to Eurasia and the Maghreb. It is th
Fischotter, Lutra Lutra
Skull
Two otters in Korkeasaari Zoo, Helsinki, Finland
Otter feeding on fish
North American river otter
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The North American river otter, also known as the northern river otter and river otter, is a semiaquatic mammal that is endemic to the North American continent throughout most of Canada and along the
Eurasian otter
…well-equipped for their aquatic lifestyle. Their bones show osteosclerosis, which increases their density and reduces buoyancy. This otter differs from the North American river otter by its shorter neck, broader visage, the greater space between the ears and its longer tail. However, the Eurasian otter is the only otter in much of…
Northern River Otter on Seedskadee NWR
Skull of a North American river otter
The North American river otter's streamlined shape allows it to glide through the water.
The North American river otter's sensitive whiskers allow it to detect prey in murky water.