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Ten Fascinating Facts About the Arapaima, the Largest Freshwater Fish in South America
A keystone species of the Amazon River ecosystem, the arapaima is a powerful predator known by many names.
Inside the Zoo: A Rare and Life-Preserving Cheetah Surgery
With the help of 3D modeling technology, a team of veterinary experts successfully carried out a rare spinal surgery on an 11-month-old cheetah cub at the Smithsonian’s National Zoo and Conservation Biology Institute in August.