Now, in a spiritual sense, we can.
"Now, wherefore did Moses say, “You shall not eat the swine, nor the eagle, nor the hawk, nor the raven, nor any fish which is not possessed of scales?” Is there then not a command of God they should not eat [these things]? There is, but Moses spoke with a spiritual reference. For this reason he named the swine, as much as to say, “You shall not join yourself to men who resemble swine.” For when they live in pleasure, they forget their Lord; but when they come to want, they acknowledge the Lord. And [in like manner] the swine, when it has eaten, does not recognize its master; but when hungry it cries out, and on receiving food is quiet again. “Neither shall you eat,” says he “the eagle, nor the hawk, nor the kite, nor the raven.” “You shall not join yourself,” he means, “to such men as know not how to procure food for themselves by labor and sweat, but seize on that of others in their iniquity, and although wearing an aspect of simplicity, are on the watch to plunder others.” So these birds, while they sit idle, inquire how they may devour the flesh of others, proving themselves pests [to all] by their wickedness. “And you shall not eat,” he says, “the lamprey, or the polypus, or the cuttlefish.” He means, “You shall not join yourself or be like to such men as are ungodly to the end, and are condemned to death.” In like manner as those fishes, above accursed, float in the deep, not swimming [on the surface] like the rest, but make their abode in the mud which lies at the bottom." Barnabas (A.D. 70-130) ch.10