A bottlenose dolphin safely delivered a calf early Saturday morning at Brookfield Zoo Chicago, a “momentous occasion” that marks the first dolphin birth in more than a decade at the west suburban

A bottlenose dolphin at the Brookfield Zoo Chicago gave birth to a calf early Saturday morning with the help of a fellow mom

The Brookfield Zoo welcomed its newest addition as a bottlenose dolphin calf was born overnight. According to the zoo, this is the first birth for the species, also known as Tursiops truncatus, since 2014.