It's a Boy! Aquarium Introduces New Calf A Pacific white-sided dolphin calf swims along with its mother, Piquet, June 12, 2012, at Chicago's Shedd Aquarium. The baby male dolphin, which does not have a name, was born on Memorial Day. According to The Associated Press, experts at the aquarium say the baby dolphin weighs about 30 pounds now. He and his mother are not part of the aquarium's exhibits yet. Kiichiro Sato/AP Photo