The cubs were pretty playful while I was there but my mom called in the middle and I couldn't hold my phone in one hand and shoot a gripped Canon 40D with a 70-200 f2.8 IS with a 1.4x tele in the other so I didn't get much of them playing .
Thanks Overread... Dad was not hiding. They seperate him from mom and kids, and this particular day he was hiding to the point were it was hard to get pictures of him and the picture didn't really turnout to be good enough to make this thread's cut.
interesting - lions are normally quite social cats (especailly social when you compare them to other cats) I guess the fact that he can't chase off the male cubs (only kill them since there is no escape from a pen)