The park announced the birth of a baby bottlenose calf to first-time mother Koko, who is 13. The calf was born on May 26 and is estimated to be around 30 pounds and measures about three feet in length ...

Dolphin calves “face significant challenges in the critical early days after birth,” an Indianapolis Zoo spokesperson tells PEOPLE A baby bottlenose dolphin has died at the Indianapolis Zoo The calf ...

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 zoo.

A 4-day-old bottlenose dolphin born at Brookfield Zoo Chicago last Saturday died suddenly late Wednesday. The male calf had been the first dolphin born at the west suburban zoo in more than a decade. ...

Brookfield Zoo Chicago is celebrating its newest resident as it opens its gates for the weekend, welcoming the birth of a bottlenose dolphin for the first time since 2014. According to a press release ...

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Everyone’s heard of blue whales and bottlenose dolphins. But have you ever heard of vaquitas? In the warm waters of the Gulf of California, off Mexico, there lives a tiny porpoise on the brink of ...

The calf was born on Oct. 29, but he “began to decline rapidly” three days later on Nov. 1, according to the zoo “Every effort was made to intervene and improve the dolphin’s chances of survival, but ...