In the fight scene at the Pig Trade, minute 27, Richards gun is lying on the ground near to him as Morgan reaches out to help him up with help from Ezekiel. In the next cut, Morgan is holding Richard's gun and hands it to him.
At the start of the fight scene at the Pig Trade, Morgan draws his weapon with his right hand. He contemplates his weapon as the fight continues. Then as the fight continues to slow, Morgan's weapon is holstered. In the next scene Morgan has his weapon in his hand again and is seen to be holstering it.
A tiger has managed to survive, despite the main plot point of the show being the scarcity of any type food. It certainly couldn't eat walkers either, because the series has made the point to deteriorate/decay them too much for such an animal to be able to consume.