Crows are considered to be among the smartest creatures on Earth. They have cognitive abilities at the levels of five- to ...

Crows are arguably among the smartest creatures on the planet, possessing some cognitive abilities that rival those of 5- to 7-year-old human children. Now, a new study adds basic geometry to the ...

(PhysOrg.com) -- In a recent study published in the Proceedings of the National Academy of Sciences, psychologist Veronique Izard from the Universite Paris Descartes and her colleagues show how ...