1. The document outlines notes from a biology class lesson on Charles Darwin and the theory of natural selection. 2. It describes Darwin's voyage on the HMS Beagle in the 1830s where he began developing his ideas about natural selection and his publication of On the Origin of Species in 1859. 3. The theory of natural selection is explained as individuals varying, some traits helping organisms survive and reproduce more successfully over generations, causing trait frequencies to change in populations over time.

1. Bell Work (pg 4)
• What does “Natural Selection” mean?
Checking: Create a timeline (green) and
Radiometric dating (yellow)

2. Construct your Interactive Notes
• Staple 7 pages to the cover
• On the cover, write
• Evolution
• Name, Period
• Draw a color picture

3. Notes: Darwin and Natural Selection
(page 2)
• Charles Darwin (1809-1882) Founder of
modern evolutionary biology

4. Notes: Darwin and Natural Selection
(page 2)
• Charles Darwin (1809-1882) Founder of
modern evolutionary biology
• Began formulating ideas about natural
selection during journey around South
America aboard the Beagle in the 1830’s

5. Notes: Darwin and Natural Selection
(page 2)
• Charles Darwin (1809-1882) Founder of
modern evolutionary biology
• Began formulating ideas about natural
selection during journey around South
America aboard the Beagle in the 1830’s
• Published “On the Origin of Species” in 1859

8. Natural Selection
• “The best idea anyone ever had”

9. Natural Selection
• “The best idea anyone ever had”
1. Individuals vary

10. Natural Selection
• “The best idea anyone ever had”
1. Individuals vary
2. Organisms produce more offspring than the
environment can support, leading to a
“struggle for survival”

11. Natural Selection
• “The best idea anyone ever had”
1. Individuals vary
2. Organisms produce more offspring than the
environment can support, leading to a
“struggle for survival”
3. Individuals with traits that help them survive
are more likely to produce offspring

12. Natural Selection
• “The best idea anyone ever had”
1. Individuals vary
2. Organisms produce more offspring than the
environment can support, leading to a
“struggle for survival”
3. Individuals with traits that help them survive
are more likely to produce offspring
4. Over time, those favorable traits will become
more common in the population

13. Example
• A mutation causes a snail to be
white, allowing it to blend in with the white
rocks it lives on. This snail is less likely to be
eaten and will have more offspring. Over
time, white snails will become more common
in the population

14. Output activity (pg 3)
• Come up with your own example of natural
selection. The example can be real or fanciful.