The oyster is usually ambisexual. It begins life as a male, then becomes a female, then changes back to being a male, then back to being female. It may go back and forth many times.

Almost every weekday morning, Kleenexes are handed to the commuters in front of Japan's rail and bus stations for free. The tissues are distributed by workers of the companies whose messages and advertisement are printed ...Read More

Scientists estimate that they could fill a 1,000-volume encyclopedia with the coded instructions in the DNA of a single human cell if the instructions could be translated to English.

One prominent feature of the Greek climate is its ample sunshine. The sun shines in Greece about 3,000 hours per year. Greece's heavily indented shores give the country extraordinary beauty, quite unique in the ...Read More

The praying mantis eats nothing but live food, predominantly insects. Its prey is taken only from flowers, leaves, bark, or the ground - never while the potential victim is in flight. Surprisingly, if quick and lucky, it ...Read More

In medieval Europe, alchemists mixed powdered gold into drinks to "comfort sore limbs," one of the earliest references to arthritis.