Did rising seas drive Vikings out of Greenland?

A new geophysical analysis helps fill gaps in an archeological puzzle: why Norse vanished in the 15th century.

Clea Simon • harvard
April 20, 2023 • ~5 min

African grey parrot outperforms children and college students

African grey parrot Griffin shows off his brain power, making students doubt their own.

Juan Siliezar • harvard
July 2, 2020 • ~7 min

Harvard study shows parrots can pass classic test of intelligence

A new study shows that African grey parrots can perform some cognitive tasks at levels beyond those of 5-year-old humans. The results not only suggest that humans aren’t the only species capable of making complex inferences, but also point to flaws in a widely used test of animal intelligence.

Peter Reuell • harvard
Feb. 25, 2019 • ~6 min

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