New Caledonian crows may find tool use fun, according to a new study. This is an Inside Science story. (Inside Science) -- Getting food is nice. But scoring that food through clever tool use is even ...

The New Caledonian crow is a bird capable of creating rudimentary tools and even improving them, sharing its discoveries and ...

They can plan, reason, and recognize human faces years later. This video explores how crows rival primates in intelligence, ...

Editor’s Note: Call to Earth is a CNN editorial series committed to reporting on the environmental challenges facing our planet, together with the solutions. Rolex’s Perpetual Planet Initiative has ...