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Older (about 6 months), wild gray wolf pups begging/greeting adult alpha female--whiter, lighter wolf.  (Canis lupus)  Yellowstone, fall.  The two pups on the right are about 75% of the size of their adult mother on the left.   Adult wolves are still bringing food (mostly regurgitating) back to this rendezvous site, though the pups are about big enough to start following the pack.