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New research may help answer why some animals have a magnetic 'sixth' sense, such as sea turtles' ability to return to the beach where they were born. The question is one that has been unresolved despite 50 years of research. The search for a mechanism has been proposed as one of the last major frontiers in sensory biology and described as if we are 'searching for a needle in a hay stack. Researchers recently authored an article in that proposes a hypothesis that the magnetic sense comes from a symbiotic relationship with magnetotactic bacteria. Magnetotactic bacteria are a special type of bacteria whose movement is influenced by magnetic fields, including the earth's. https://www.ucf.edu/news/animals-magnetic-sixth-sense-may-come-from-bacteria-new-paper-suggests/ .............................................................................. #earth #science #nature #animals #education
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