The new baby sifaka was born February 8th, and can barely be seen clinging to his mom's stomach as she jumps around their exhibit.
Matt Goeben is assistant curator of primates. He says the Philadelphia Zoo is only the fourth zoo in the country to breed sifakas in capitivity:
"This is their first offspring (for us). And we hope that as time goes on, that the relationship between the animal keepers and the animals will solidify to the point that you can take the baby off of mom directly. Right now, you can only take the baby off of dad."
You can choose a name for the new baby sifaka at philadelphiazoo.org.