Big Bird and Mr. Snuffleupagus are together again as Super7 unveils their new Sesame Street ReAction Figures 2-Pack ...

New research shows how physical changes in the skull affected the mechanics of the way birds move and use their beaks to eat and explore their habitats -- adaptations that helped them evolve into the ...

A prehistoric feathered throwback that stands five feet tall, this apex predator easily swallows its younger siblings, and ...

Ironically, the salt marsh sparrow on the east coast of the U.S. is widely regarded in science as the most promiscuous bird in the entire world; 95 percent of the females mate with more than one male ...

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