Uploaded December 2025 | Updated September 2026, 2 weeks ago

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Despite having a brain the size of a pinhead, jumping spiders in the genus Portia can plan ahead, learn through trial and error, and even lie. How are they so smart? They're changing what we know about cognition.

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Sources: docs.google.com/document/d/e/2PACX-1vSt2UpXpSNlJiOu8slA79vAfytei76fQbgaI5IxlTLX7uwkxlsyYlU4tOB0cIRW1Ry5PsAxBLXBdFEF/pub