Charles Darwin suggested in 1871 that spoken language originated with instinctive sounds, like squeals or yells, which humans then learned to imitate and modify for specific purposes. Now, scientists ...

Birds across the globe independently evolved a shared warning call against parasites, blending instinct and learning in a ...

Birds separated by vast geographic distances and millions of years of evolution share a remarkably similar learned vocal warning to identify parasitic enemies near their nests, an international team ...