Shadow's been extremely social in retirement, and we have not recorded any bark howling or tucked tail response with activity in the wolf yard or actions in the main enclosure. This was not the case when he was the dominant male in the Exhibit Pack, where he displayed real leadership by threat displaying towards anything that was not familiar and bark howling as a warning to strangers. In retirement, Malik and Shadow co-exist, with very little show of dominance with the exception of Malik's possessiveness over food. We are concerned about Shadow's weight. While it is common for wolves to lose weight in the summer, Shadow's weight has dropped considerably since April. On April 29, 2010, Shadow weighed 87 lbs. The ~ 72 lb weight today is a significant concern, and certainly reinforces the decision to retire him from the stresses of Exhibit life and gain the benefits of limited competition and unlimited resources in retirement. We will implement a feeding regime to increase his weight, but we must also consider the possibility that there are underlying physical conditions to monitor. The good thing is, behaviorally and physically, he is very active, alert and calm, getting a lot of rest in the den.

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