A baby gorilla was born at the National Zoo. See the photos of the critically endangered mom and baby.

The National Zoo in Washington welcomed an adorable baby gorilla on Saturday morning, and visitors may be able to catch a glimpse of the baby, who has not yet been named, as soon as Tuesday, according to Smithsonian's National Zoo and Conservation Biology Institute. 

The infant is a western lowland gorilla, which is a critically endangered species. 

Mom Calaya, 20, has been nursing the baby, the zoo said. Animal care staff say the infant has been clinging closely to its mother.