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Archive for May 12, 2016

Young Otters Just Beginning to Explore Outside Their Den

e-river otter 125Between February and April, female North American River Otters give birth to an average of two or three young inside their dens, which tend to be near water, usually in an excavated cavity under tree roots, logs or thickets.  Occasionally they have been known to give birth in abandoned beaver and muskrat lodges as well as woodchuck burrows.  The mother doesn’t allow her young to exit their den until they are three or four months old, which, for the oldest litters, is in May.  At this point, after their waterproof adult coats have grown in, she begins to teach them how to swim (surprisingly, this skill is not innate). The mother continues to be very protective and secretive, hiding and shielding the young (even from their father) until they are about six month old.  Thus, glimpses of young otters are not likely to be had until late summer, and only then if you’re lucky. (Photo: adult river otter. Thanks to Heidi Marcotte and Tom Wetmore for photo op.)

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