How Is Being Brainy Correlated To Longevity In Parrots?

Parrots apparently evolved larger brain sizes so they could solve problems that might otherwise have killed them, and their braininess ended up promoting their long-term survival

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Palm cockatoo (Probosciger aterrimus) at Jurong BirdPark, Singapore. This species has the largest brain in relation to body mass of any parrot alive today. (Credit: Doug Janson / CC BY-SA 3.0)

Why are parrots so long-lived? It’s an obvious question that is not well understood by the scientific community…