Most Popular Baby Names Revealed, and Isabella Loses No. 1 Slot

Three naked babies sit next to each other.
Parents are always on the lookout for something new when it comes to baby names, says one baby-name expert.
(Image credit: Dreamstime)

Bye, bye, Isabella, there's a new girl on the block. For the first year, Sophia is the most popular baby name for girls, according to the Social Security Administration's most popular baby names of 2011, released today (May 14).

Jacob remains No. 1 for boys, holding this top spot for the 13th year. Only one new name blasted onto the top-10 list: Mason jumped to the second spot, replacing Anthony.  Until 2010, when it hit No. 12, Mason had never cracked the top 25 for baby boys' names.

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Managing editor, Scientific American

Jeanna Bryner is managing editor of Scientific American. Previously she was editor in chief of Live Science and, prior to that, an editor at Scholastic's Science World magazine. Bryner has an English degree from Salisbury University, a master's degree in biogeochemistry and environmental sciences from the University of Maryland and a graduate science journalism degree from New York University. She has worked as a biologist in Florida, where she monitored wetlands and did field surveys for endangered species, including the gorgeous Florida Scrub Jay. She also received an ocean sciences journalism fellowship from the Woods Hole Oceanographic Institution. She is a firm believer that science is for everyone and that just about everything can be viewed through the lens of science.