'Tail' in the Bible

Yahweh said to Moses, "Put forth your hand, and take it by the tail." He put forth his hand, and laid hold of it, and it became a rod in his hand.

Also you shall take some of the ram's fat, the fat tail, the fat that covers the innards, the cover of the liver, the two kidneys, the fat that is on them, and the right thigh (for it is a ram of consecration),