Tilly, a North American river otter, is raising two tiny pups, born Feb. 26 at the Oregon Zoo. The new arrivals — one male and one female — weighed around 4 ounces each at birth and have already doubled that thanks to their mother’s naturally high-fat milk. Story: http://www.oregonzoo.org/news/2017/03/otter-babies-river-otter-tilly-raising-2-new-pups
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