Evolution Under Pressure by Yolanda Ridge
Author:Yolanda Ridge
Language: eng
Format: epub
Publisher: Annick Press
Published: 2023-05-25T17:33:52+00:00
Chapter Four:
Camouflage: How Pollution Colors Moths
We were happy on the farm for thousands of years. It was hard work since everything had to be done by hand. Many people also think it led to a decline in nutrition and an increase in disease. But controlling our environment seemed worth it. We had food in the cupboard and a warm bed for sleeping.
With more food and better shelter, the population grew. People got together to share knowledge and make trades. This led to two major advancements:
New tools like wooden, horse-drawn plows
Machines powered by steam engines
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