Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Perhaps ...

Crows and ravens exhibit remarkable cognitive abilities, mirroring human intelligence in memory, problem-solving, and social ...

It’s a fascinating question that intrigues millions of pet owners, animal lovers, veterinarians and scientists all over the world: Just how smart are animals? Scientists once believed a brain with ...

Many animals are well-known for their intelligence. Animal cognitive science has shown how octopuses are skilled problem-solvers and how chimps evolved to use tools. But give either animal a standard ...

Some crows leave pebbles or shiny objects for humans who feed them. Science suggests this behaviour comes from intelligence, ...

(CNN) — Perhaps “birdbrained” isn’t such an insult after all –– crows, the ubiquitous urban bird, can vocally count up to four, the latest research has found. Not only can the inquisitive creatures ...

(CNN) — Perhaps “birdbrained” isn’t such an insult after all –– crows, the ubiquitous urban bird, can vocally count up to four, the latest research has found. (CNN) — Perhaps “birdbrained” isn’t such ...