Fiona is a big sister. New Baby Hippo Born at Cincinnati Zoo

(CNN) — Bibi the hippo gave birth Wednesday night, the Cincinnati Zoo said in a tweet on Thursday.

“Bibi gave birth around 10 p.m. and so far everything seems to be going well with mother and baby,” the zoo said. “They will stay out of their habitat for about 2 weeks to bond.”

A name will likely be discussed today, Jenna Wingate, a senior zookeeper with the zoo’s Africa team, told CNN New Day on Thursday.

“We focused on getting this healthy calf out into the world and keeping our focus on Bibi,” Wingate said.

“We are so happy to say that the baby is strong and looking very healthy so far,” Wingate said.

That means Fiona, Bibi’s daughter, is officially a big sister.

Fiona became an international celebrity after being born six weeks premature in 2017 and weighing just 29 pounds at birth. Hippos are usually born weighing close to 100 pounds.

Fiona’s weight was a record-breaking low weight for a hippo, but she managed to survive against all odds, CNN previously reported. Fiona now weighs about 1,300 pounds.

Wingate said the zoo was “cautiously optimistic” about Bibi’s latest pregnancy, as Fiona was born prematurely.

“This calf seems to be really healthy,” Wingate said. “We haven’t put any weight on these yet, but we estimate it’s definitely over 50 pounds, and usually they’re about 50-100 pounds.”

The zoo said in a press release that Bibi and her baby “will not be immediately visible to the public”, but that it is working on “sharing photos and videos if the care team can get them without disturbing them”.

“The newborn hippo has spent most of the day with Bibi in the indoor pools, exploring, resting and nursing, which is exactly what the hippo care team was hoping for,” the zoo said on Twitter. “Hippos spend most of their lives in the water, and hippo calves even suckle underwater.”

Top image: A new baby hippo was born at the Cincinnati Zoo on Wednesday night. (@cincinnatizoo/Twitter)