A rare Sumatran orangutan was born at the Simon Skjodt International Orangutan Center Wednesday evening.

Sumatran orangutans are critically endangered, and orangutan births in the United States are extremely rare.

Just in time for Orangutan Caring Week, the Indianapolis Zoo announced today 22-year-old Sumatran orangutan Sirih’s pregnancy – the first for the Simon Skjodt International Orangutan Center.