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July 1, 2008
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Echogram shows two groups of squid swimming to meet each other in the middle forming a large group.
Echograms, or time-depth plots of echo strength, show how acoustics can reveal the behavior of squid. This echogram shows two groups of squid that were separated by about 98 feet (30 meters) in the water column, swimming to meet each other in the middle, forming one larger group.
Credit: Kelly Benoit-Bird, Oregon State University
Images credited to the National Science Foundation, a federal agency, are in the public domain. The images were created by employees of the United States Government as part of their official duties or prepared by contractors as "works for hire" for NSF. You may freely use NSF-credited images and, at your discretion, credit NSF with a "Courtesy: National Science Foundation" notation.
Additional information about general usage can be found in Conditions.
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