Forelimbs of people, porpoises, bats and horses provide the classic example of homology in most textbooks. They look different, and do different things, but are built of the same bones. No engineer, starting from scratch each time, would have built such disparate structures from the same parts.
-Stephen Jay Gould
Select a background
![Awesome background image](/backgrounds/default/17.png)
![Awesome background image](/backgrounds/default/1-400.png)
![Awesome background image](/backgrounds/default/19.png)
![Awesome background image](/backgrounds/default/13.png)
![Awesome background image](/backgrounds/default/1-375.png)
![Awesome background image](/backgrounds/default/6.png)
![Awesome background image](/backgrounds/default/1.png)
![Awesome background image](/backgrounds/default/10.png)
![Awesome background image](/backgrounds/default/25.png)
![Awesome background image](/backgrounds/default/21.png)
![Awesome background image](/backgrounds/default/3.png)
![Awesome background image](/backgrounds/default/8.png)
![Awesome background image](/backgrounds/default/9.png)
![Awesome background image](/backgrounds/default/2.png)
![Awesome background image](/backgrounds/default/24.png)
![Awesome background image](/backgrounds/default/16.png)
![Awesome background image](/backgrounds/default/12.png)
![Awesome background image](/backgrounds/default/22.png)
![Awesome background image](/backgrounds/default/1-275.png)
![Awesome background image](/backgrounds/default/14.png)
![Awesome background image](/backgrounds/default/11.png)
![Awesome background image](/backgrounds/default/5.png)
![Awesome background image](/backgrounds/default/18.png)
![Awesome background image](/backgrounds/default/15.png)
![Awesome background image](/backgrounds/default/20.png)
![Awesome background image](/backgrounds/default/4.png)
![Awesome background image](/backgrounds/default/4.jpg)
![Awesome background image](/backgrounds/default/23.png)
![Awesome background image](/backgrounds/default/7.png)
More quotes by Stephen Jay Gould
Popular Authors
A curated listing of popular authors.