Not seen it reported yet but Knowsley has 2 male lion cubs that are now out and about with the pride - i think they are a couple of months old and they are names Sam & Shaun apparently (I asked). And the second Rhino calf was born recently too - I think it was a female but I am willing to be corrected obviously.
The second rhino calf is indeed a female. See thread below http://www.zoochat.com/38/another-rhino-knowsley-196653/