Posts Tagged ‘tree’

  • Why do leaves change color in the fall?

    Many of the colors we see in fall are always present, but normally they’re hidden from view, says UW-Madison Arboretum native plant gardener Susan Carpenter. The leaves of trees and other plants contain three main pigments: carotene, anthocyanin, and the photosynthetic pigment, chlorophyll, which captures the sun’s energy to make food for plants. As the [...]


    Thursday, October 11th, 2007
  • Trees: Natural Barrier to Tsunami Waves?

    Could something as simple, cheap and natural as a forest protect a coastline from a tsunami’s titanic wave? It’s looking that way…


    Thursday, October 27th, 2005
  • Cicada Cascade

    Like a chamberful of pork-barreling legislators, cicadas are on the wing in Washington, D.C. Voracious. Unstoppable. A force of nature: 17-year cicadas are back!


    Thursday, May 27th, 2004
  • Earthworms Wrecking Forests?

    Alien earthworms are killing trees in northern deciduous forests. Are fishing people to blame?


    Thursday, August 31st, 2000
  • Amber: The Natural Preservative

    How amber is used in archeology and paleontology: Reviving ancient bacteria, viewing ancient insects, what’s not to love about amber?


    Tuesday, February 27th, 1996


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