SCIENCE IN THE NEWS DAILY
Blink Twice if You Like Me
from the New York Times (Registration Required)
LINCOLN, Mass. — Sara Lewis is fluent in firefly. On this night she walks through a farm field in eastern Massachusetts, watching the first fireflies of the evening rise into the air and begin to blink on and off. Dr. Lewis, an evolutionary ecologist at Tufts University, points out six species in this meadow, each with its own pattern of flashes.
... The fireflies flashing in the air are all males. Down in the grass, Dr. Lewis points out, females are sitting and observing. They look for flash patterns of males of their own species, and sometimes they respond with a single flash of their own ...
... For the past 16 years, Dr. Lewis has been coming to this field to decipher the evolutionary forces at play in this production, as fireflies have struggled to survive and spread their genes to the next generation.
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