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Giant squids' giant eyes: The better to see hungry whales with
Date:3/17/2012

cencelight produced by small gelatinous animals when they are disturbed by the whale moving through the water," Nilsson says. "It is well known that bioluminescence can reveal submarines at night, and diving sperm whales will become visible for the same reason."

The findings may also explain the large eyes of prehistoric ichthyosaurs, giant marine reptiles that looked something like dolphins, the researchers say. Although ichthyosaurs lived long before whales came along, they would have had to contend with giant predatory pliosaurs.

The new model can also be used to predict how far other animals can see underwater. "It is a powerful tool for understanding vision," Nilsson says.


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Contact: Elisabeth (Lisa) Lyons
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