Photo by Pamela Baker-Masson/Smithsonian’s National Zoo.

It’s a boy! The National Zoo announced this morning that Mei Xiang’s surviving panda cub is male and the father is none other than Tian Tian. The Zoo also said that the panda cub that died was also male and sired by Tian Tian through artificial insemination.

According to an initial necropsy, pathologists and veterinarians determined that the smaller cub’s death was most likely caused by “complications associated with aspiration of food material into the cub’s respiratory system resulting in the development of pneumonia.”

Both the surviving panda and Mei Xiang are healthy and doing well, the Zoo says. As for Tian Tian? Probably time for him to get a job and support his family.