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The Eurasian otter declined across its range in the second half of the 20th century [28] primarily due to pollution from polychlorinated biphenyls and pesticides such as organochlorine. Other threats included habitat loss and hunting, both legal and illegal. [29] Eurasian otter populations are now recovering in many parts of Europe.
Several otter species live in cold waters and have high metabolic rates to help keep them warm. Eurasian otters must eat 15% of their body weight each day, and sea otters 20 to 25%, depending on the temperature. In water as warm as 10 °C (50 °F), an otter needs to catch 100 g (3.5 oz) of fish per hour to survive.
However, during the winter and in colder environments, fish consumption is significantly lower and the otters use other resources for their food supply. Their diets can consist of amphibians (mainly frogs and pond turtles), bird predation (mainly anserine species), small rodents , and invertebrates such as water beetles, snails, and crayfish.
The North American river otter (Lontra canadensis), also known as the northern river otter and river otter, is a semiaquatic mammal that lives only on the North American continent throughout most of Canada, along the coasts of the United States and its inland waterways. An adult North American river otter can weigh between 5.0 and 14 kg (11.0 ...
The giant otter has a handful of other names. In Brazil it is known as ariranha, from the Tupi word arerãîa, or onça-d'água, meaning water jaguar. [6] In Spanish, river wolf (Spanish: lobo de río) and water dog (Spanish: perro de agua) are used occasionally (though the latter also refers to several different animals) and may have been more common in the reports of explorers in the 19th ...
Sea Otters are one of the cutest animals on the planet. Here are some of facts that will make you fall in love with them all over again. SEE ALSO: These tiny bats look just like cotton balls 1.
All river otters of Japan were described in the 19th century as a subspecies of the Eurasian otter, Lutra lutra whiteleyi.In the early 1990s, a comparison of mitochondrial cytochrome b of otters from Latvia and China, and a stuffed otter from Japan, made by Kōchi University, found that the Japanese otter belonged to a distinct species, which was named Lutra nippon. [7]
Related: Otter's Reaction To Finding Phone in Aquarium Is Priceless "Bonnie always wants 'uppies,'" he joked in the caption. It stands to reason that Whisennand probably loves his job.