"Hey, I just found the missing link!"
Ok, now this subject is a little uncomfortable for the evolutionist. It turns out that a couple of the early "cornerstones" of Evolution were found out to be hoaxes. Accidental or intended, these events demonstrate that no "scientific" find should be simply "accepted" as fact without further inquiry.

Ernst Haeckel: Evangelist for Evolution and Apostle of Deceit
So eager to prove Evolution was this man, that in 1868, he published his "Natural History of Creation", which included drawings of various stages of the human embryo which illustrate that it goes through a series of changes which recall it's ascent to manhood. Stages include a "fishlike" stage, and other animal stages. (see image). He later confessed to falsifying the depictions. Some however, continued to use his 'law of recapitulation’ as evidence of Evolution. It was eventually learned that many of the stages although possessing some superficial appearance of other animals, were in fact wishful thinking. As in the case of the supposed "gill slits" on the early stages, which in fact were folds of skin. (click the headline to read more)

Piltdown Man
The famous Piltdown Man, a supposed missing link was found to be in all actuality, the fragmented cranium of a human, and the jawbone of an orangutan. The most amazing part about this is that while it is no longer considered evidence for Evolution, it fooled the scientific community for years, before being found to be a hoax. Demonstrating that even a "scientific community" can be in error.

Nebraska Man
Another so called evidence was 'Nebraska Man'. The evidence? The tooth of a pig. Evolutionists, of course, are embarrased by this kind of thing, but according to Jim Foley of the Talk.Origins website (pro Evolution) say they shouldn't be! This was just an example of science doing its thing!

"Nebraska Man should not be considered an embarrassment to science. The scientists involved were mistaken, and somewhat incautious, but not incompetent or dishonest. The whole episode was actually an excellent example of the scientific process working at its best. Given a problematic identification, scientists investigated further, found data which falsified their earlier ideas, and promptly abandoned them (a marked contrast to the creationist approach)."

Sure, Jim, so we should expect that when a tooth is found, it is only natural that a depiction like this should appear in the Illustrated London News? Pictures sell things. Pictures like this one, based on the tooth of a pig helped to sell Evolution as fact during the early 1900's. Yes, evolutionists should be embarassed by Nebraska Man. (or shall we say, piglet tooth?)

Ok, but that stuff doesn't happen anymore, right? Consider this news story from October 8, 2001:

Archaeologist faked finds at 42 sites
After being caught on video tape, planting stone tools, a highly respected Japanese archaeologist (Shinichi Fujimura, former deputy director of the Tohoku Paleolithic Institute in Tagajo) admitted that he "fabricated everything" at some 42 sites. It is important to note, that the fakery involved "ancient stone tools" that were designed to be the "oldest stone tools ever found." (click the headline for the news article)

Two Minnesota academics admitted making rock carvings which were taken for Viking writings.
"One of the reasons we came forward was we saw that people were being asked to make financial contributions to have the rock tested," Proff Gade said. "We didn't feel it would be right to carry this further." (for more on this, click the headline)

X-Rays Expose Bird-Dino Fossil Fraud
ABC News March 28, 2001 Using high-powered X-rays that see through rock, scientists have unveiled how a fraudulent fossil purported to be a "missing link" between dinosaurs and birds was glued together from mortar and bits of fossil and stone.

Buyer Beware.
Usually, though, the lie is far more subtle. It comes in the form of statements which in honesty, should include words like "scientists believe", or "geologists imagine", or "biologists assume", but instead sound profoundly confident, as though all the facts are in, and we can now be certain that ______ (insert claim here). Of course, any honest listener should immediately realize that the soothing voice on the documentary could not have possibly witnessed these events of supposed millions of years ago, but sadly most people seem to accept statements made with boldness and confidence. Afterall, "who am I to question a scientist?"

"For the time will come when men will not put up with sound doctrine. Instead, to suit their own desires, they will gather around them a great number of teachers to say what their itching ears want to hear. They will turn their ears away from truth and turn aside to myths.
2 Timothy 4:3-4 NIV