Researchers measuring whale sharks find that the biggest sharks recorded in the last few years are significantly smaller than those recorded over a decade ago, prompting them to raise concerns about the whereabouts of adults and what this means for the survival of the species

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Researchers measuring whale sharks find that the biggest sharks recorded in the last few years are significantly smaller than those recorded over a decade ago, prompting them to raise concerns about the whereabouts of adults and what this means for the survival of the species