Charlotte and Elliot are the proud parents of a baby two-toed sloth born Sunday at Denver Zoo.

The baby doesn’t have a name yet and its gender hasn’t been identified. Both mom and baby are healthy and have been bonding ahead of their Feb. 1 public debut. Guests can see Charlotte and her baby in their habitat in Bird World.

During her 10-month pregnancy, zoo experts monitored Charlotte and her baby with regular ultrasounds, checkups and weigh-ins. Keepers even devised an innovative way to weigh Charlotte by training her to come to a specific branch connected to a scale.

The baby clung to Charlotte immediately after birth and will remain attached to her almost exclusively for at least six months.

Sloths are nocturnal animals that spend 15 to 20 hours per day sleeping. They tend to become active from an hour after sunset until about two hours before sunrise. Zoo visitors may be able to catch a glimpse of mom and baby, but their view might be impaired by foliage or Charlotte’s embrace.

The baby sloth is the zoo’s first announced birth in 2018. Read more about babies born at the zoo in 2017 here.

View other babies from the Denver Zoo below: