One month ago, on April 2, we experienced an unforgettable moment at Como – the surprise birth of a Hoffman’s two-toed sloth on exhibit. Guests and staff alike were awed by the rare sight, and Sago, a first-time mom, quickly showed strong maternal instincts.

Sadly, we’re now sharing difficult news. Earlier this week, the baby sloth was found unresponsive in the sloth habitat and is believed to have passed away sometime overnight on Sunday/Monday. The cause is not yet known, and we are awaiting necropsy results to better understand what happened. Our animal care team is closely monitoring Sago and continuing to offer her thoughtful, individualized support.

In this same week, life reminded us of its balance – of sorrow and celebration – our baby Emperor tamarin made his public debut. The newborn, named Bleu, can now be seen in the Primate Building with first-time parents Ilsamar and Reggiano.

“Watching Reggiano take on his role as a first-time dad has been amazing,” said Primate Zookeeper Mike. “He’s constantly carrying Bleu, grooming him, and doing everything he’s supposed to do—it’s been heartening for our whole team.”

Emperor tamarins have a gestation period of 140–145 days and typically weigh just 30–40 grams at birth. These small primates are born with the ability to cling tightly to an adult’s fur—usually their father’s. Bleu will spend the next 6–7 weeks riding on Reggiano’s back before gradually venturing out on his own.

We ask visitors to enjoy observing this special family quietly and respectfully. Please do not tap or bang on the glass, as this can be stressful for the animals, especially with a newborn in the habitat.

Moments like these—both heartwarming and heartbreaking—are part of the complex, emotional journey of caring for living beings. We are deeply grateful to our animal care professionals for their compassion, skill, and dedication every step of the way.