Volume 89 | Number 5 | September-October 2001
A review of Deep Time: Paleobiology's Perspective, by Douglas H. Erwin and Scott L. Wing
A review of The Executive Brain: Frontal Lobes and the Civilized Mind, by Elkhonon Goldberg
A review of The Triumph of Sociobiology, by John Alcock
A review of The Merely Personal: Observations on Science and Scientists, by Jeremy Bernstein
A review of Henry Norris Russell: Dean of American Astronomers, by David H. DeVorkin
A review of Signs of Life: How Complexity Pervades Biology, by Ricard Solé and Brian Goodwin
A review of Biologists and the Promise of American Life: From Meriwether Lewis to Alfred Kinsey, by Philip J. Pauly
A review of Pathways to Language: From Fetus to Adolescent, by Kyra Karmiloff and Annette Karmiloff-Smith
A review of The Hole in the Universe: How Scientists Peered over the Edge of Emptiness and Found Everything, by K. C. Cole and The Book of Nothing: Vacuums, Voids, and the Latest Ideas about the Origins of the Universe, by John D. Barrow
A review of Time and Chance, by David Z. Albert
Total Records : 15
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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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