Bear

Medio-Persia - Daniel 7:5

Bear is same as the Ram mentioned in Daniel 8

Daniel 7:5  he bear can be none other than Medo-Persia.  Its raising itself on one side denotes the Persians soon becoming a dominate Power, while the "three ribs... between the teeth of it" probably symbolize three prominent territories that the Medo-Persian power conquered- Lydia, Babylonia, and Egypt.  But just as a slow-moving bear proves no match for the savage onslaught of the agile leopard, so the Persian armies were unable to cope with the swift advances of Alexander's warriors.

Daniel 7:5 - And behold another beast, a second, like to a bear, (Medio-Persia)  and it raised up itself on one side, and it had three ribs in the mouth of it between the teeth of it: and they said thus unto it, Arise, devour much flesh.

Daniel 7:17 - These great beasts, which are four, are four kings, which shall arise out of the earth. (Medo-Persia was the second kingdom, Medo-Persia came after Babylon.)