I'm watching this Discovery Channel documentary about the Ice Age. Creationists love to criticize these shows, and their complaints are usually unfounded. On this particular show, however, the narrator is conspicuously over-using the word "proof." The word has occured more in this show than at a convention of mathematicians. It's strange -- insecure, even. Here's my favorite line:

Some researchers believe that saber-toothed cats may have been social animals. Proof of this comes from a surprising conjecture...

Do biologists get to prove things based on conjectures?