Tripa is the little male Sumatran orang whose development was causing concern. He was diagnosed with a thyroid problem and is now receiving medication. Having seen him twice recently, I think he looks much better: I can't tell if he is growing more quickly, but he seems stronger, more active and more independent and I think that the condition of his coat has improved. He was playing with this puzzle feeder and using it to scoop water out of the pool.