Why Do Siblings Have Rivalries?

Completely Optional Knowledge by #CompletelyOptional

Aug 23, 201600:10:03Science & Medicine

Molly and John Knefel, sister and brother co-hosts of the daily podcast “Radio Dispatch” wonder why siblings become rivals. Naomi White, PhD, of Cambridge University, explores the evolutionary and cultural roots of sibli...

Related Episodes

Continue listening to more episodes from Completely Optional Knowledge.

An Update & Exciting News!

Jan 2, 2018 - 00:03:11

An update on the podcast and some exciting news. Spoiler - the exciting news is a new podcast.

Why Do Frozen Lakes and Rivers Sound So Creepy?

Dec 26, 2016 - 00:08:33

Brigitta Green from the perennial winter wonderland of Minnesota has a fitting question for us about ice....

What's The Coolest Species Name?

Dec 13, 2016 - 00:10:53

What's the coolest or weirdest official name for a species of plant or animal? And how do they get those...

Why Distinguish Between Fruits and Vegetables?

Nov 29, 2016 - 00:10:28

Is a watermelon a vegetable? Biologically it’s logical, but does the answer depend where you live?

Why Do Animals See Color Differently?

Nov 15, 2016 - 00:10:34

Zookeeper Rick asks why why animals see color differently? Dr. Jay Neitz of the University of Washington...

Do Animals Have Rituals Around Death?

Nov 1, 2016 - 00:10:33

Listener Ross Wintle, driving past a cemetery near his home, wonders if animals other than humans have ri...

Why Do We Laugh At Pain?

Oct 18, 2016 - 00:11:30

Listener Matthew Hollingshead, a skateboard enthusiast, asks why it’s so funny to watch people get hurt....

Do Animals Have Eating Contests?

Oct 4, 2016 - 00:11:59

Hilah Johnson hosts a show about cooking (and, naturally, eating)and she came to us with a very on-brand...