Miss MacGregor
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Watch: How Animals and People See the World Differently

Scientists may understand how the eye works, but seeing what other animals see is another matter entirely. Learn how eyes evolved, and find out which animal’s eye biologist Tom Cronin.

Ulcerative Colitis and Crohn's Disease

Crohn's DiseaseCrohn's disease, along with ulcerative colitis is an inflammatory bowel disease. In the past it was called terminally ileitis, but it has been shown that Crohn's disease affects the

Lung Structure- Shape and volume

Plaster casting of the respiratory tree. Why would you want to destroy something so beautiful by smoking?