A Moment of Science

Posts tagged chemical reaction

September 27, 2003

 

How Do Polar Bears Drink?

Eating snow to obtain water is metabolically expensive–it would take too much energy to melt down enough snow. Consequently, polar bears have evolved so that they don’t need to drink free water.

September 27, 2003

 

Can the Dead Move?

The chemicals that cause this reaction are stored in our nerve endings, and when we die, they’re gradually released.

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