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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. Most species hunt for three to five hours each day and nursing mothers up to eight hours each day.
A study conducted on captive otters revealed they preferred larger fish, ranging from 15 to 17 centimeters (5.9 to 6.7 in), more than smaller fish, ranging from 8 to 10 centimeters (3.1 to 3.9 in), and they had difficulty catching fish species less than 10 centimeters (3.9 in) or larger than 17 centimeters (6.7 in). [27]
It primarily eats fish, typically less than 20 cm (7.9 in) in length, but also frogs and small crustaceans, especially when fish is in short supply. [6] The female bears a litter of up to three young after a gestation period around two months. The young are born blind and helpless, and the mother cares for them for almost a year. [5] [3]
Don't get it twisted. Despite being so small and cute, these Small-Clawed Asian Otters can get seriously ticked. In the video the woman shared, the two animals were demanding that their breakfast ...
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The prey preference varies among individuals; some prefer crabs; others, frogs or fish. Frogs are eaten headfirst and fish are pulled apart into manageable bits. Prey is consumed on the bank. P. velox also eats insects, mollusks, and freshwater prawns. [4] In captivity it eats 15–20 crabs per night. [1]
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Female otters become sexually mature between 18 and 24 months old and the average age of first breeding is found to be 2 + 1 ⁄ 2 years. Gestation for the Eurasian otter is 60–64 days, the litter weighing about 10% of the female body mass.