Since adopting our Sheppard Cross in the fall, we went from Bully Sticks lasting a day and a half when she was 3 months old, to being devoured in a few hours now at 10 months old. In an effort to find our girl a treat that would last more than an afternoon, I stumbled across Yak Chews, and bought her the large ones. She absolutely loves them, and the best part is we are currently 2 days later, and she still has a 1/3 left! (it also doesn't give her terrible gas, which is obviously a win for u...