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Humans

From the March 5, 1938, issue

Shoes that give silent testimony for safety measures, ten moons and counting for Saturn, and finding oil in impossible places.

Humans

One-Stop Shopping for Every Species

On Feb. 26, the Encyclopedia of Life went live. This site hopes to become the definitive place to find information on every living species—millions and millions of them. The first extensive sets of entries will include fish and members of the potato and tomato families. But more species will be added all the time—offering basic […]

Earth

Ocean ups and downs—the long view

Sea level has dropped about 170 meters in the past 80 million years, thanks in part to the thinning of ocean crust and the formation of land-based ice sheets.