Terry Gross

Although his brain was no bigger than a walnut, Alex the African gray parrot could do more than speak and understand — he could also count, identify colors and, according to his owner Irene Pepperberg, develop an emotional relationship.

Since joining the Howard Stern Show in 2001, comic and actor Artie Lange has revealed his personal demons to millions of radio listeners.

Beginning with the Democratic primary, president-elect Barack Obama's campaign did not waver in its focus on "change." Journalist Ryan Lizza argues that the constancy and simplicity of Obama's message allowed the candidate to turn his vulnerabilities into assets — and outmaneuver both Hillary Clinton and John McCain.