Like a leopard — This leopard was the Grecian monarchy; a leopard is less than a lion, so was this monarchy at first, but yet durst fight with a lion; so did Alexander encounter Darius with an inferior force. A leopard also for his swiftness; therefore described with four wings on his back. Four heads — He was succeeded by four of his chief commanders, who divided that empire into four parts.
Related Commentaries of Daniel 7:6
Daniel 7:6
6 After this I beheld, and lo another, like a leopard, which had upon the back of it four wings of a fowl; the beast had also four heads; and dominion was given to it.