"From cucumbers and carrots to white rice and wheat, we humans have altered the genes of almost every food we eat. For almost 10,000 years we've been engineering plants by keeping the seeds from the best crops and planting those the next season. Following this practice year after year has resulted in a slow but steady change -- and a substantial cumulative effect."
http://www.pbs.org/wgbh/harvest/engineer/
Use THIS SIMPLE ACTIVITY to see how selective breeding works.
Find out how selective breeding (artificial selection) has led to different breeds of dogs.
Use this site for a quick and fun way to learn about NATURUAL SELECTION:
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