Sadly, our oldest male owl-faced monkey, Sidney, died last week. He had been injured while in his cage with the females two weeks before and was removed to recover. The injury healed well and he was fine, so he was placed back in the cage with the females. The next morning the veterinarian had an early call from the sentinels saying the monkey was on the ground. Examination of the body showed no sign of any injury. It is thought that he may have suffered a heart attack. All other monkeys in the cage are well.