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Memory is seasonal for the chickadee and its seeds.(Knight Ridder Newspapers)

Knight Ridder/Tribune News Service

| August 01, 2002 | Boyd, Robert S. | COPYRIGHT 2002 Knight-Ridder/Tribune News Service. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan.  All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)Copyright

WASHINGTON _ Tiny chickadees perform astounding feats of memory thanks to a system of "place cells" in their pea-sized brains.

The little black-and-white birds grow new brain cells, or neurons, each fall, just when they are hiding hundreds of seeds in dozens of locations around their feeding grounds.

According to Israeli bird researcher Anat Barnea and Fernando Nottebohm, director of Rockefeller University's Field Research Center for Ecology and Ethology in Millbrook, N.Y., the added cells sprout in the hippocampus, a part of the brain associated with spatial memory in rodents, monkeys and humans.

"In the wild, chickadees retrieve these seeds in ...

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