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The pygmy hog (Porcula salvania), the world’s smallest and one of the rarest wild pigs, is the focus of a reintroduction effort in Northeast India, where a captive-breeding programme launched in 19...

Since being collared in Zambia two years ago, a young bull elephant known to researchers as Z16 has walked nearly 12,000 kilometers, or 7,500 miles — three times the distance between New York and Los ...