Giant Squid: Behind the Scenes

Chemists and Museum Curators Exhibit Giant Squid in Improved, Safer Preservation Fluid

September 1, 2009

Chemists and museum curators are conducting a 30-year experiment with a new kind of preservation fluid, monitoring itýs capabilities on an exhibit featuring a giant squid. Traditional preservation liquids present challenges such as flammability and discoloration of both the liquid and specimens. The new solution created by chemists preserves color, remains clear and is safer to use. To perform this way, the fluid surrounds the specimen and uses certain chemicals to keep the water out of any crevices to keep the squid from rotting. Because it is denser than water, specimens tend to float to the top of the surface, requiring curators to anchor down specimens.

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ABOUT GIANT SQUID: The name says it all. Far from supermarket calamari, specimens of giant squid have been found to be more than 40 feet long, and some people claim to have seen even larger individuals. There are over 300 different species of squid that live in the ocean, but this one has a sophisticated nervous system, and some of the largest eyes in the animal kingdom. Much of their length comes from their arms and tentacles. They move and evade predators (mostly sperm whales) by propelling water through their torsos like a jet.

PRESERVING SPECIMENS: Traditionally, the methods used to preserve animal specimens can be flammable, change color over time, or leach out the color from a specimen. The new fluid was originally developed for use in the electronics industry. It is nonflammable, nontoxic, and does not contribute to depleting the ozone layer. The fluid has very low surface tension, which allows it to spread around the entire specimen's surface, fitting into the smallest nooks and crannies.

The American Geophysical Union contributed to the information contained in the TV portion of this report. This report has also been produced thanks to a generous grant from the Camille and Henry Dreyfus Foundation, Inc.

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To Go Inside This Science:
Elizabeth Musteen
Smithsonian Institution
MUSTEENE@si.edu

Peter Weiss
American Geophysical Union
Washington, DC 20009-1277
pweiss@agu.org
1-800-966-2481