VIDEO: 500-Lb. Hippo Is Zoo’s Star Acrobat

08/09/2011 AT 5:00 PM ET

This object displays a Brightcove video

When a baby gets on a scale, it’s often a milestone of growth – and it’s no different for the San Diego Zoo’s newest hippo calf, 5-month-old Adhama, who last weighed in at just under 500 lbs.

The zoo’s star baby has been captivating visitors since he was born (this, too, happened in front of an audience). He’s been performing water ballets and exhibiting play behavior like biting his mother’s face, which helps the teething process.