February 25, 2021

TerabitWeb Blog

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Friday Squid Blogging: On Squid Communication

1 min read

Original Post from Schneier Security
Author: Bruce Schneier

They can communicate using bioluminescent flashes:

New research published this week in Proceedings of the National Academy of Sciences presents evidence for a previously unknown semantic-like ability in Humboldt squid. What’s more, these squid can enhance the visibility of their skin patterns by using their bodies as a kind of backlight, which may allow them to convey messages of surprising complexity, according to the new paper. Together, this could explain how Humboldt squid­ — and possibly other closely related squid­ — are able to facilitate group behaviors in light-restricted environments, such as evading predators, finding places to forage, signaling that it’s time to feed, and deciding who gets priority at the dinner table, among other things.

As usual, you can also use this squid post to talk about the security stories in the news that I haven’t covered.

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Author: Bruce Schneier

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