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Intelligence

A contested measurement with a disreputable history.

5
in nature
9:18
average
47 min
in total
8
across the network
Intelligence across the network →
All briefs5
9:58

Grey parrot

A parrot that adds numbers, shares nuts, and mimics bats—then vanishes from entire countries.
10:26

Common raven

A bird that solves puzzles like a primate — then blurs the line between species.
8:00

Cuttlefish

The cuttlefish is intelligence without memory — a two-year burst of problem-solving, deception, and learning before vanishing.
9:58

Kea

Curiosity keeps the kea alive in the mountains—and kills it near humans.