So you too got to see 'the Gem'; I'm delighted for you; he's the reason I flew to Brownsville for (plus of course the remaining ungulate collection but he was the icing on the cake)
Well, all right, I don't have the knowledge to comment on Duiker longevity, but as the person who told me this is a veteran zookeeper (whom we both know) with a lot of experience in ungulates so I thought she was a good source. However, perhaps it differs between species?
