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Why Do You Love Your Family?

Why do we love people we’re related to? Compared to strangers, why do we feel such a deep sense of connection with our family members? Sure, they’re nice to us, we take care of each other, and we often live with them, but there has to be a deeper biological reason. That reason, unsurprisingly is evolution.
Season 5 Episode 43 Length 06:56 Premiere: 12/20/17

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Specials

Season 5 Episodes

Why Is Blue So Rare In Nature?
S5 E45 Length 07:39 Premiere Date 01/09/18

How Atom Bombs Can Uncover Forged Art
S5 E44 Length 05:06 Premiere Date 01/02/18

Why Do You Love Your Family?
S5 E43 Length 06:56 Premiere Date 12/20/17

20 Million Year-Old Spider!! Unweaving Spider Silk 🕷
S5 E42 Length 07:14 Premiere Date 12/12/17

Inside an Ice Cave! - Nature's Most Beautiful Blue
S5 E41 Length 05:45 Premiere Date 11/28/17

The Romantic Lure of Moonlight
S5 E40 Length 03:46 Premiere Date 11/15/17

Asteroid Mining: Our Ticket To Living Off Earth?
S5 E39 Length 05:17 Premiere Date 11/07/17

Should You Eat Everyday?
S5 E38 Length 04:38 Premiere Date 11/01/17

The Cheerios Effect
S5 E37 Length 05:08 Premiere Date 10/25/17

Why It Is What Time It Is (The History of Time)
S5 E36 Length 05:54 Premiere Date 10/17/17

Doomsday Machines
S5 E35 Length 05:35 Premiere Date 10/03/17

Why Is The Universe So Empty? (ft. PHD Comics!)
S5 E34 Length 04:04 Premiere Date 09/26/17

Do You Really Have Two Brains?
S5 E33 Length 04:20 Premiere Date 09/19/17

Why Do Disney Princesses All Look Like Babies?
S5 E32 Length 06:04 Premiere Date 08/22/18

Putting Hurricane Harvey In Perspective
S5 E32 Length 03:58 Premiere Date 09/15/17

DNA Doesn’t Look Like What You Think!
S5 E31 Length 05:18 Premiere Date 09/05/17

3 Incredible Examples of Evolution Hidden In Your Body
S5 E31 Length 06:58 Premiere Date 07/24/18

How Poop Shapes the World
S5 E30 Length 03:34 Premiere Date 08/29/17

The Only Animal That Weeps
S5 E30 Length 04:24 Premiere Date 07/24/18

When Is It Winter On Other Planets?
S5 E29 Length 05:00 Premiere Date 08/25/17

The Surprising Reason We Eat Spicy Food
S5 E29 Length 05:38 Premiere Date 07/24/18

Your Climate Conscience - feat. Al Gore
S5 E28 Length 05:21 Premiere Date 08/08/17

It's Okay to Fart
S5 E28 Length 05:07 Premiere Date 07/24/18

Why Nature Loves Hexagons (featuring Infinite Series!)
S5 E27 Length 05:58 Premiere Date 08/03/17

Which Life Form REALLY Dominates Earth?
S5 E27 Length 06:23 Premiere Date 07/24/18

How Do Glaciers Move?
S5 E26 Length 06:30 Premiere Date 07/25/17

What’s The Hottest Hot and Coldest Cold?
S5 E26 Length 05:11 Premiere Date 07/24/18

Beavers: The Smartest Things in Fur Pants
S5 E25 Length 04:42 Premiere Date 07/19/17

How Evolution Turned A Possum Into A Wolf
S5 E25 Length 07:02 Premiere Date 07/24/18

Orchid Mantis: Looks That Kill
S5 E24 Length 03:44 Premiere Date 07/11/17

The Cosmic Origins of Earth's Water
S5 E24 Length 04:14 Premiere Date 07/24/18

The Deadpool Salamander That Can Regrow Limbs
S5 E23 Length 07:16 Premiere Date 07/24/18

Why Do Fireflies Have Blinky Bottoms?
S5 E23 Length 04:22 Premiere Date 07/03/17

Why Do We Itch?
S5 E22 Length 04:57 Premiere Date 06/25/18

How The Pyramids Were Built (Pyramid Science Part 2)
S5 E22 Length 05:41 Premiere Date 06/30/17

What If You Never Forgot Anything?
S5 E21 Length 08:22 Premiere Date 05/07/18

Is Space A Thing?
S5 E21 Length 07:14 Premiere Date 06/20/17

97% of Climate Scientists Really Do Agree
S5 E20 Length 05:39 Premiere Date 05/07/18

How Ingenious Animals Have Engineered Air Conditioning
S5 E20 Length 03:54 Premiere Date 06/13/17

ЩΉӨ BЦIᄂƬ ƬΉΣ PYЯΛMIDƧ - Who Built The Pyramids
S5 E19 Length 04:47 Premiere Date 06/02/17

Can You Bend Light Like This?
S5 E18 Length 08:04 Premiere Date 04/11/18

De-Extinction: A Mammoth Undertaking
S5 E18 Length 04:42 Premiere Date 05/23/17

Could You Be Immune To Everything?
S5 E17 Length 06:16 Premiere Date 03/09/18

CRISPR and the Future of Human Evolution
S5 E17 Length 05:58 Premiere Date 05/17/17

Are We All Related?
S5 E16 Length 06:06 Premiere Date 05/09/17

Why Are There As Many Males As Females?
S5 E16 Length 05:20 Premiere Date 02/27/18

Why Does Hair Grow The Way It Does?
S5 E15 Length 04:18 Premiere Date 05/02/17

Defusing the Population Bomb
S5 E15 Length 05:51 Premiere Date 02/27/18

Tuatara All the Way Down
S5 E14 Length 07:55 Premiere Date 02/27/18

Why Are We The Only Humans Left?
S5 E14 Length 06:09 Premiere Date 04/25/17

Where Did Humans Come From?
S5 E13 Length 06:18 Premiere Date 04/18/17

Dogs and Humans: A 30,000-Year Friendship (ft. MinuteEarth)
S5 E12 Length 03:36 Premiere Date 04/12/17

Why I ❤ PBS
S5 E11 Length 02:32 Premiere Date 04/10/17

How Much Plastic is in the Ocean?
S5 E10 Length 04:43 Premiere Date 03/28/17

Illuminating the Universe: The History of Light
S5 E9 Length 05:51 Premiere Date 03/21/17

What is Luck?
S5 E8 Length 05:10 Premiere Date 03/17/17

How Do We Know Plate Tectonics Is Real?
S5 E7 Length 04:03 Premiere Date 03/07/17

How the Meter Became The Meter
S5 E6 Length 06:02 Premiere Date 02/28/17

How the Toilet Changed History
S5 E5 Length 05:43 Premiere Date 02/14/17

Relationship Advice from the Animal Kingdom
S5 E4 Length 05:18 Premiere Date 02/08/17

The Superb Owl!
S5 E3 Length 04:10 Premiere Date 01/31/17

How Many Species Are There?
S5 E2 Length 04:16 Premiere Date 01/24/17

Is This A NEW SPECIES?!
S5 E1 Length 08:06 Premiere Date 01/17/17

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