March of the Red Devil

• Autores: Michael Tennesen
• Localización: New scientist, ISSN 0262-4079, Nº. 3038, 2015, págs. 32-35
• Idioma: inglés
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• Resumen

  • Tennesen talks about the Adult Humboldt squid (Dosidicus gigas), a fierce predator. The Adult Humboldt squid are roughly the size and weight of an adult human, have eight arms, two long tentacles covered with toothed suckers and are notoriously aggressive. They will fearlessly latch onto divers with their powerful arms. While many ocean dwellers are suffering as climate change makes waters warmer, less alkaline and less oxygenated, these beasts thrive and push into new territories. Recent observations suggest that this is all down to extraordinary feats of transformation. When pulled from the sea they flash a deep, angry shade of red and flail muscular tentacles. Underwater, they use their two tentacles with barbed suckers to capture passing prey in a flash and pull them to their arms and parrot-like beak.