A rare Triassic fossil unearthed in Brazil, Gondwanax paraisensis, could provide new insights into the origins of dinosaurs.

What started as the beginning of a construction project ended with what could be a discovery going back tens of millions of ...

Birds descended from the dinosaurs, but researchers have known relatively little about how the bird's brain took shape over ...

The brains of today's birds facilitate a level of cognitive prowess and behavioral complexity rivaled only by mammals. But ...

Navaornis fills a ~70-million-year gap in our knowledge of the evolution of the unique bird brain. Navaornis hestiae (centre) ...