The extreme physical changes that come during pregnancy may be most evident in humans, but they plague other animals as well. New research shows that pregnant dolphins are so hefty the increased drag ...

This Chicago-area zoo is expecting its first dolphin birth in more than a decade. Bottlenose dolphin Allie, 37, is pregnant, Brookfield Zoo Chicago announced. The calf is due in June, but 24-hour ...

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This summer the Brookfield Zoo’s bottlenose dolphin habitat will reverberate with the chatty whistles and playful leaps of a new calf — the first expected to be born there in over a decade. On ...

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APPLE VALLEY, Minn. — The Minnesota Zoo has temporarily canceled its popular dolphin show because one of the dolphins is pregnant. The zoo brought in two female dolphins in January, hoping to breed ...

Staff at Brookfield Zoo in Chicago are delighted that Allie, their 37-year-old bottlenose dolphin, is pregnant. With her pregnancy now in its second trimester, Allie's journey is being carefully ...

APPLE VALLEY, Minn. -- A dolphin at the Minnesota Zoo is expecting again. The zoo said Tuesday that "Rio" was expecting her fourth calf next summer. Rio is the oldest female in the zoo's group of ...