Word: roeder
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...flying insects. Bat chirps bounce off their tiny bodies like sonar pulses, giving their position away to the swooping enemy. Yet despite the bat's delicate detection equipment, many an insect escapes-and scientists have long wondered why. In the current issue of the American Scientist, Biologists Kenneth Roeder and Asher E. Treat explain how they pried into the defensive secrets of the noctuid moth, an insect that has demonstrated singular evasive skill...
Warning Wiggles. Working with infinite care, Roeder and Treat took a live moth, attached delicate wires to the nerves leading out of one of its ears, and connected the little insect to an amplifier and an oscillograph. Then they turned on an electronic generator that gave out brief bursts of ultrasonic sound-a reasonable imitation of a prowling bat. Even where the man-made beeps were too weak to be detected by man-made microphones, the moth's ear responded with electrical signals. When the imitation bat sounded louder, as if it were closing in, the moth...
...GORDON ROEDER...
...GORDON ROEDER...
Yard Birds. In Medford, Mass., Tufts College Professor Kenneth D. Roeder, studying insect nerve reactions, sadly reported that a detail of cockroaches supplied by the Army were so lazy that they refused to hop even for science...