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Sunny delight     Sun-Worshipers Rejoice! DNA repair allows life in the sun. Researchers have identified a mechanism that allows most people to bask - at least occasionally - in the sun. From DNA Repair: Something New Under the Sun http://whyfiles.org/shorties/dna_repair.html

Turtle ears     In the murky undersea world, light waves don't travel far. How do sea turtles use hearing to sense their world? From Turtle's hearing test http://whyfiles.org/shorties/turtle.html

Nicotine junkies     Addiction. Still smoking that tobacco? In the midst of a battle royale over tobacco, nicotine and smoking, scientists have found striking evidence that heroin, cocaine and nicotine affect the same part of the brain. Statistics and information. From Smoke gets in your eyes http://whyfiles.org/024nicotine/

Learning about learning     Can adult brains make new neurons? Until the last few years, neurologists who believed that new nerve cells appeared in brains of adult mammals were about as common as mint-green Nash Ramblers at used-car lots. From Yearning for learning http://whyfiles.org/093learn/

Evolution of Languages     We don't ask ourselves where languages come from because they just seem to be there: French in France, English in England, Chinese in China, Japanese in Japan, and so forth. Yet if we go back only a few thousand years, none of these languages were spoken in their respective countries and indeed none of these languages existed anywhere in the world. Where did they all come from? From Exploratorium Magazine: The Body http://www.exploratorium.edu/exploring/index.html