Are sharks attracted to bright colors?


Quick Answer

Sharks are attracted to contrast, not colors. It is not known for certain whether sharks can distinguish between different colors, but studies indicate that the contrast of bright and dark, such as bright yellow swim fins with a dark wetsuit, can attract a shark's attention.

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Full Answer

While a shark's eyesight is very keen, their other senses may play a bigger role in finding prey. The sound of thrashing, such as would be made by an injured fish or a distressed diver, seems to attract sharks even from great distances. Their sense of smell is also highly acute. Some species are reportedly able to detect one part per million of blood in seawater. In addition, sharks have electroreceptor organs called "ampullae of Lorenzini," which allow them to seek prey out by the electromagnetic field that all living things produce.

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