Heart Monitors on Narwhals Reveal Dangers of Human Encounters | National Geographic publisher December 11, 2017 Leave a Comment ” Categories:National geographic AnimalsEngNatureSub-engTravels Previous Post Does your social circle determine how much you care? | David Hudson | TEDxBrum Next Post OYUN: HER YAŞTA! | Selçuk Sefer | TEDxİKÜ
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