We started feeding the retirees a deer leg on the weekends in addition to their regular diet.  This extra food supply has some additional behavioral benefits such as caching, defending food, carrying their possession and overall fulfilling the need of a carnivore.  But, as a special addition to these behaviors, the added food stimuli seemed to increase the social interactions between Grizzer and Denali bringing a hop back to their aging steps.  This is particularly rewarding to watch on Grizzer who has been struggling with some aging tendons in the last few weeks.  There is some truth to the advice that keeping active can improve mobility.  To see these two in action, check out this week’s Youtube posted at www.wolf.org