An international team of scientists studied 261 bird species across 69 families. They wanted to understand what comes first: ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. The rain might make us all a bit miserable, but it can have ...

Studies show that in birds, differences in survival and maturation between males and females skew adult sex ratios, which then shape mating systems, parental roles, and competition. Research on ...

Researchers have uncovered new insights into the evolution of bird behavior, revealing why certain mating systems persist while others disappear over time. Researchers at Rice University have ...

New research shows that variation in mating behaviors, parental care and differences in ornamentation of the sexes in bird ...

A vivid, in-depth look at why birds behave as they do. Birds are intelligent, sociable creatures that exhibit a wide array of behaviors--from mobbing and mimicking to mating and joint nesting. Why do ...

Love songs, dinner and maybe even a new home. Economists predict that U.S. consumers will spend nearly $26 billion on Valentine’s Day gifts this season. But high in the sky and nestled in between the ...