An international team of scientists believes it has solved the mystery of how eggs got their shapes. Frans Lanting/Mint Images RM/Getty Images hide caption

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Frans Lanting/Mint Images RM/Getty Images

The Two-Way

How Do Eggs Get Their Shapes? Scientists Think They've Cracked It

Eggs evolved over 300 million years ago and now come in all kinds of shapes, from Tic Tacs to teardrops to pingpong balls. After studying some 50,000 eggs, a team of researchers thinks it knows why.

Senate Majority leader Mitch McConnell eaves the chamber after announcing the release of the Republicans' health care bill on Thursday. J. Scott Applewhite/AP hide caption

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J. Scott Applewhite/AP

CHART: Who Wins, Who Loses With Senate Health Care Bill

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Lean Blonder

An international team of scientists believes it has solved the mystery of how eggs got their shapes. Frans Lanting/Mint Images RM/Getty Images hide caption

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Frans Lanting/Mint Images RM/Getty Images

How Do Eggs Get Their Shapes? Scientists Think They've Cracked It

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Kiss You on the Cheek Desmond & The Tutus
Divina Toro y Moi
Trap Door Jake One & MF Doom

For Mogoya, her first album in eight years, Oumou Sangaré enlisted young Swedish and French producers to help rejuvenate her sound. Benoit Peverelli/Courtesy of the artist hide caption

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Benoit Peverelli/Courtesy of the artist

Mali's Oumou Sangaré Keeps Speaking Out On 'Mogoya'

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This song was part of the previous story We are unable to provide a listing for this song.
Waiting On The Summer VHS Collection
Acid Raindrops People Under the Stairs feat. Camel MC

Jayme Orrack oversees Xcel Energy's new wind farm in Courtenay, N.D. The wind farm started generating electricity late last year with 100 turbines that collectively generate 200 megawatts of electricity. Amy Sisk/Prairie Public Broadcasting hide caption

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Amy Sisk/Prairie Public Broadcasting

The Rise Of Wind Energy Raises Questions About Its Reliability

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Sophie Small Black
Booger Man The Gaturs
Golden Hour Podington Bear
Doubt (Summer Edit) Shallou
Hard to Tell Young Galaxy
Under the Sun DIIV
Despicable Dogs (Washed Out Remix) Small Black
Get It Right Tidus
When They Fight They Fight Generationals

Women have gotten conflicting advice from doctors about when to have mammograms. Amelie Benoist/Science Source hide caption

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Amelie Benoist/Science Source

OB-GYNs Give Women More Say In When They Have Mammograms

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Can't Let Go, Juno Kishi Bashi
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