Knölval slår nytt rekord med 15 100 kilometer lång vandring

Forskare har bekräftat att en knölval simmat minst 15 100 kilometer mellan parningsområden i Brasilien och Australien, vilket gör det till den längsta kända resan för en individ av arten.

Upptäckten kommer från en studie publicerad i Royal Society Open Science som analyserade nästan 20 000 fotografier av stjärtfenor insamlade under fyra decennier. Forskare identifierade valen genom unika märken på stjärten som först fotograferades vid Brasiliens Abrolhos Bank 2003 och senare sågs ensam i Australiens Hervey Bay i september 2025. En andra val tillryggalade minst 14 200 kilometer efter observationer i Queensland 2007 och nära São Paulo 2019.

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