Didn't one the big Everetts in porn . . . not Brent . . . the other one, go from Twink (where people got in trouble because he said he was older than he really was when he made porn) to older porn model. Is that a Twunk?
The zoo keepers should try to get a fertilized egg for these guys. They just want to start a family. Give them the chance and they wouldn't have to steal eggs from derelict parents.