A red ruffed lemur was born at the San Diego Zoo in May. It has been 13 years since the last red ruffed lemur was born at the zoo. The rare species is only found in one region in the entire world: the Masoala Peninsula in Madagascar.
A southern pudu fawn, born in May 2015, walks in its enclosure at the Queens Zoo in New York. The pudu is the world's smallest deer species.
Giant panda Lun Lun gave birth to twins at Zoo Atlanta in July 2013. She was caring for one of her cubs but not letting the photographer see it.
The first Zoo Atlanta panda twin arrived on July 15, 2013, at 6:21 p.m. Its twin arrived two minutes later. They're both male. They were the first giant pandas to be born in the United States in 2013.
Pongo, a Sumatran orangutan, was born at Zoo Altanta via cesarean section in January 2013. First-time mom Blaze initially needed round-the-clock help from zoo staff and volunteer nurses from the local children's hospital to learn to care for Pongo.
Penelope the giraffe was born at the San Diego Zoo in May 2013, and she was held in a restricted "playpen" until joining the herd about one week later. About 6 feet tall at birth, Penelope is a Masai giraffe. The species is native to Africa and is threatened in some areas.
This Asian elephant calf was born at the Fort Worth Zoo in July 2013. It weighed 330 pounds and measured 38 inches tall. Rasha, a 40-year-old Asian elephant, gave birth to her second calf after a 22-month pregnancy.
– This baby babirusa, born in March 2013 to first-time parents Wilma and Bertello, was the first of its species to be born at the Riverbanks Zoo and Garden in Columbia, South Carolina. "Babirusa" is Malaysian for "deer-pig." These swine run swiftly like deer and are known to be good swimmers.
Four black crakes, which are native to sub-Saharan Africa, hatched at the Oregon Zoo in July 2013.