Casting humans as the true deadly beasts in animal-rights campaigns is a no-brainer. Doing so with creativity and good humor is another thing altogether. This German campaign uses some great movie-poster send-ups to convey the message that man—and in one case, a 50-foot woman—is the world's most lethal predator. See all three ads here. (The agency is Serviceplan. The clients are the United Nations Environment Programme and the Convention on Migratory Species.) Many campaigns have generated sympathy for apes and sharks. Here, even tarantulas get some love. From their point of view, a fast-approaching human is indeed a "giant terror 6 feet high!" As for the 50-foot chick, well, she clearly poses just as great a threat to human males as mountain gorillas. Still, some guys I know wouldn't mind getting her number. Via Ads of the World.

—Posted by David Gianatasio