Forever blowing bubbles

• Autores: Julia Brown
• Localización: New scientist, ISSN 0262-4079, Nº. 3165, 2018, págs. 26-27
• Idioma: inglés
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• Resumen

  • Brown features an image of humpback whale's final stage bubble-net hunting, a sophisticated technique taken from a drone as a part of a project led by David Johnston of Duke University in Durham, North Carolina, to learn more about the whales' behaviour. A laser altimeter fitted to the drone allows his team to calculate its altitude and thus the sizes of the whales and their bubble nets. A whale and its partner, visible just below the water's surface, have together created a trap for the krill--their main food source--by swimming around exhaling columns of bubbles through their blowholes.