Eurasian otters live in various habitats, such as freshwater rivers, serene lakes, bustling marshes, and coastal areas. They are the most widespread among the otter species, living not only in Europe but also in Asia and North Africa.

They have dense brown fur coats, cream bellies, and longer tails than the previous type. On average, male otters are 4.6 feet, including tails, and can weigh up to 26 pounds. 

Regarding diet, these nocturnals hunt fish, amphibians, crustaceans, and occasionally small birds or mammals.