Across
- 6. Darwin's observation that some species adapt to their environment.
- 7. The process by which animals best suited to their environment survive and reproduce.
- 8. "Survival of the ___." Darwin used this term to describe how animals with the best traits survive.
Down
- 1. Darwin’s most famous book is about origin of. .
- 2. The islands where Darwin made important discoveries about evolution.
- 3. Darwin's famous theory of how species change over time.
- 4. Darwin’s ship during his travels.
- 5. The trait or characteristic passed from one generation to the next.