Uncategorized
- Anthropology
Apes, monkeys split earlier than fossils had indicated
A new genetic analysis pushes back the estimated time at which ancient lineages of monkeys and apes diverged to between 29 million and 34.5 million years ago, at least 4 million years earlier than previously thought.
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19495
Your article reports that between 1973 and 1999, “the total area covered by almost 940 Swiss glaciers fell by 18 percent, an average rate of 1.3 percent per year.” An 18 percent loss over 26 years represents an annual rate of less than 0.8 percent. An annual loss of 1.3 percent would mean a total […]
- Earth
Alpine glaciers on a hasty retreat
Comparisons of satellite images, aerial photos, and old surveys of Alpine glaciers indicate that the ice masses are losing area at an accelerating rate.
