Peruse the egg section of a grocery store or farmers market, and you'll notice cartons of eggs separated into white and brown, sometimes even green or blue eggs. But once they arrive scrambled on ...

In commercial egg production, eggs with a white shell typically come from a Leghorn chicken ... to breed. And brown and white aren't the only colors out there. "Various chicken breeds lay various ...

Special to The New York Times. TimesMachine is an exclusive benefit for home delivery and digital subscribers. Full text is unavailable for this digitized archive article. Subscribers may view the ...