Jeffrey Kluger has written for Time Magazine for over twenty years and is the author of ten books, including "The Sibling Effect: What the Bonds Among Brothers and Sisters Reveal About Us." He joins Kate and Oliver to share his extensive reporting on siblings, explain why parents really do have a favorite child, discuss why this relationship is so unique, and much more.

Executive Producers: Kate Hudson, Oliver Hudson, and Sim Sarna

Produced by Allison Bresnick

Editor: Josh Windisch

Music by Mark Hudson

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