In this photo provided by the Chicago Zoological Society, a 3½-foot male bottlenose dolphin calf, born on Dec. 12, 2014, swims with his 9-year-old mother, Allison, at the Brookfield Zoo in Brookfield, Ill., on Dec. 13. The unnamed calf weighs about about 35-40 pounds. (Associated Press/Chicago Zoological Society, Jim Schulz) **FILE**
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