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Study links fish stress hormones to whether they take the bait

20:00 EDT 21 Aug 2017 | AAAS

(University of Illinois at Urbana-Champaign) Take a fish out of water and its stress hormones will go up. Adrenaline and noradrenaline, the 'fight or flight' hormones, peak first, followed more gradually by cortisol. A new study finds that largemouth bass whose cortisol levels rise most after a brief bout of stress are inherently harder to catch by angling.

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