A 2005 study revealed an African grey parrot named Alex understood an empty set. Alex could apply the label 'none' to absent object categories. This parrot had previously learned to identify objects, ...

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CNN is honoring people who have shoved conventional wisdom aside and are shaping the world around us with their insights and innovations.

A woman convicted of murder is set to be sentenced in the Callaway County Circuit Court Thursday. In April, Heather Smith was ...

Explore the 25 strangest scientific theories ever proposed, from phlogiston to the hollow Earth. Discover how bizarre ideas ...

A screen test is a filmed audition that helps determine whether an actor is right for a particular role. Screen tests are conducted during preproduction, after the first rounds of auditions have ...

Turkish students excel in Japan’s Math final, securing victorious results and showcasing their mathematical prowess on the international stage.