Friday Squid Blogging: How Squid Survived Extinction Events

· Bruce Schneier · April 24, 2026, 9:08 p.m.
squid squid cuttlefish evolution extinction events
Summary
This blog post discusses the evolution of squid and cuttlefish, revealing how they survived extinction events by retreating to deep-sea refuges and later diversifying after moving to more shallow waters. It shares recent scientific discoveries based on genome analysis and global datasets.
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