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Humboldt Squid are carnivorous marine invertebrates that move in shoals of up to 1,200 individuals. They swim at speeds of up to 24 kilometres per hour (15 mph/13 kn) propelled by water ejected through a hyponome (siphon) and by two diamond shaped fins. Their tentacles bear suckers lined with sharp teeth with which they grasp prey and drag it towards a large, sharp beak.
Although Humboldt squid have a reputation of being aggressive, the only reports of aggression towards humans have occurred when reflective diving gear or flashing lights have been present as a provocation.
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