The Beast of Revelations:
Mouth of a Lion
2. The beast I saw was like a leopard, with the feet of a bear and the mouth of a lion. And the dragon gave the beast his power and throne and great authority.
The lion represents something that sets out on a fearful rampage to devour something else entirely, leaving nothing. Satan is called a roaring lion who prowls about seeking someone to devour. Jesus will come back as a lion to devour all of the wicked from out of the world.
The Beast itself has the mouth of a lion, and not each individual head, and so there is one lion's mouth on the Beast. (Although, if each individual head of the Beast has a lion's mouth, it won't make a difference to the imagery behind it.) The leopard represents something predatory by nature; and the bear's feet represents the crushing of nations and individuals with debt from corporations and big banks. The lion's mouth is most likely the devouring of one small nation after another by, what John Perkins of "The Confessions of an Economic Hitman", calls corporatocracy. That is: a network of government, international corporations (especially big oil companies) and (world) banks, who go into a small country to arrange huge loans to bring infrastructure to the country, but the money ends up going to the corporations who build the infrastructure, and not to the people of that country. Then, when the smaller nation cannot pay back the huge loan, new arrangements are made for the now indebted nation to surrender their national resources to the world banks, the rich nation behind it all, and international corporations associated with the large and rich nation that has now plundered them. Thus, the small nation becomes the debt-slave of the shadowy economic manipulation of the large nation behind it all: usually the U.S. and U.S. corporations and banks. (Though today, Russia and China are now devouring nations too.)
In this sense, the Beast, which is the Criminal/Shadow Economic Banking System, eats and devours the smaller, poorer nations with a lion's ferocious rapacity (aggressive greed), and brings them into the secret Network as dept-serfs, which is what the huge debt was always meant to accomplish. It is a country like the U.S. hunting down, gobbling up, and enriching itself, and making itself bigger and bigger, feeding on the smaller, weaker nations' resources and sovereignty. Globalization and financialization require constant expansion and consumption in order to survive, and to survive, it will devour with all the fearfulness of a roaring lion. This is the lion that devours and wants to leave nothing, and this, I believe, is the Beast's mouth of a lion.
Revelations 12: Woman Clothed In The Sun, and the Dragon