Adult male Iberá seedeater (Sporophila iberaensis) (left; image credit Abel Fleita) and adult male tawny-bellied seedeater (Sporophila hypoxantha) (right; image credit Sheela Turbek) live alongside ...

Genetic material and the physical appearance of 11 species of seedeaters—small birds from open areas of South America that eat seeds and, along with their finch cousin, belong to the genus ...

Speciation is a term used in evolutionary biology to refer to the process by which a new species emerges in a group that has isolated itself from other members of an ancestral population and has ...

Not all species may travel the same path to existence, at least according to new findings from the University of Colorado Boulder and collaborators. This new research, out today in Science, looked at ...

Redirecting to: https://www.colorado.edu/asmagazine/2021/03/25/endangered-songbird-challenging-assumptions-about-evolution ...

New research looked at a newly discovered, endangered songbird located only in South America -- the Iberá Seedeater -- and found that this bird followed a very rare evolutionary path to come into ...