Uncategorized
- Plants
X-rayed Flowers
For new insights into the delicate architecture of flowers, take an X-ray view. Albert G. Richards, who taught dental radiography at the University of Michigan, presents a gallery of unfamiliar views of familiar flowers, from the hidden archways of an iris to the complex plumbing of columbine spurs. Go to: http://www-personal.umich.edu/~agrxray/gallery.html
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Brain trait fosters stress disorder
A brain-scan study of pairs of twin brothers, in each of which only one twin had been a Vietnam combat veteran, indicates that the inheritance of an undersized brain structure called the hippocampus predisposes individuals to post-traumatic stress disorder.
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Ant cheats plant; plant cheats back
An Amazonian tree grows little pouches on its leaves to invite ants to move in and provide guard duty, but the tree drops the pouches from old leaves because ants ravage the flowers.
