Volume 90 | Number 5 | September-October 2002
A review of Lost Languages: The Enigma of the World's Undeciphered Scripts, by Andrew Robinson
A review of From Hand to Mouth: The Origins of Language, by Michael C. Corballis
A review of The Birds of Northern Melanesia: Speciation, Ecology and Biogeography, by Ernst Mayr and Jared Diamond
A review of The Dawn of Human Culture, by Richard G. Klein with Blake Edgar
A review of Redesigning Humans: Our Inevitable Genetic Future, by Gregory Stock
A review of Sakharov: A Biography, by Richard Lourie
Total Records : 16
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ANIMATION: Hydrangea Colors: It’s All in the Soil
The Hydrangea macrophylla (big-leafed hydrangea) plant is the only known plant that can 'detect' the pH level in surrounding soil!
One of the world’s most popular ornamental flowers, it conceals a bouquet of biological and biochemical surprises. The iconic “snowball” shaped hydrangea blooms are a common staple of backyard gardens.
Hydrangea colors ultimately depend on the availability of aluminum ions(Al3+) within the soil.
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