Humans are not the only species to combine concepts to build more complex meaning, a new study found. Bonobo chimpanzees combine calls in a manner similar to how humans structure words to make phrases ...

HARRISBURG, Pa. — Today many Americans celebrate Thanksgiving by gathering with family to eat a large meal together. For Native Americans, however, the holiday can have a more complex meaning. The ...

Forests in the eastern United States that are structurally complex -- meaning the arrangement of vegetation is highly varied -- sequester more carbon, according to a new study. The study demonstrates ...