The image of the wolf pack is true insofar as it actually show a group of wolfs traveling through a National Park. What is fake is the description of what we see. Here’s the text that usually accompanies the image: “A wolf pack: the first 3 are the old or sick, they give the pace to the entire pack. If it was the other way round, they would be left behind, losing contact with the pack. In case of an ambush they would be sacrificed. Then come 5 strong ones, the front line. In the center are the rest of the pack members, then the 5 strongest following. Last is alone, the alpha. He controls everything from the rear. In that position he can see everything, decide the direction. He sees all of the pack. The pack moves according to the elders pace and help each other, watch each other.”
According to Snopes, a site dedicated to fact checking digital stories and shares, the picture comes from a BBC documentary, Frozen Planet in 2011, and the original description explained that “the ‘alpha female’ led the pack and that the rest of the wolves followed in her tracks in order to save energy”. In other words, the entire text above is untrue.