Philadelphia Zoo welcomes baby orangutan. This cutie is a real rarity. Here's why

For the first time in 15 years, the Philadelphia Zoo welcomed a baby Sumatran orangutan last month.

The zoo announced the birth of the critically endangered animal Thursday, calling it a significant birth to the population. The orangutan was born to Tua and Sugi, and its sex has not been determined and no name has been given.

Tua, 31, was described as an "excellent mother, nursing and holding the baby at all times." The zoo also shared a video of the family bonding.

"Mom and baby are currently setting their own schedule for when they will be visible to guests," the zoo said in a news release. "They have access to their indoor habitat where visitors may get a glimpse of them but also have access to their bedroom space to spend time alone."

The zoo said it is planning a public debut next month.

There is a population of 14,000 left on the island of Sumatra as the species is threatened by "deforestation and population fragmentation," according to the news release.

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This article originally appeared on Bucks County Courier Times: Philadelphia Zoo welcomes rare Sumatran orangutan