When Charles Darwin first coined the phrase, he was referring to the way in which evolution can slow to a crawl because of an environment in which competition is minimal. If a species is not constantly having to adapt to survive, it will have little need to change. Still, some scientists would rather see the term fade into the historical record like so many dodo birds, for the way it is often misapplied. So the moniker "living fossil" is a guideline at best, and a tool used against science at worst. With all those caveats in mind, then, let's take a closer look at some of the plants and animals which have for one reason or another come to be considered living fossils.