| A | B |
|---|
| HMS Beagle | Darwin's boat |
| Charles Darwin | Wrote Origin of the Species |
| Naturalist | Scientist who studies nature |
| Species | Group of similar organisms that can mate |
| Adaptation | Trait that helps an organism survive |
| Evolution | Gradual change in a species over time |
| Scientific theory | Well tested concept (hypothesis) |
| Natural selection | Process in which better adapted will survive |
| Variation | Differences between individuals of same species |
| Geographic isolation | Result of continental drift |
| Seamount | Underwater mountain |
| Galapagos Islands | Visited by Darwin |
| Overproduction | Too many offspring to survive |
| Introduced species | Newcomers that upset a pristine place |
| Competition | Offspring must compete to survive |
| Pangaea | Supercontinent |
| Blue-footed booby | Bird found on Galapagos |
| Beaks of finches | Example of adaptation |
| Preservative chemicals | Cause animal species to lose color |
| Located off South America | Galapagos Islands |
