Diane Ackerman

Jan. 18, 2008

The Zookeeper's Wife

Ira talks with Diane Ackerman, author of 'The Zookeeper's Wife,' a new book about World War II and the Warsaw Zoo.

war, holocaust, zoos

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Michael Pollan Talks Plants and Food

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Baby, It's Cold Outside

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Snowflake Safari

\tWinter weather means more than sledding and snowmen. Next snowstorm, grab a magnifying glass and try snowflake hunting. Bullet rosettes, stellar plates, and capped columns are just a few of the varieties of snow crystal you can find in your backyard. Kenneth Libbrecht, physicist at Caltech and snowflake expert, shares secrets of the snowflake.

\tVideo originally published on ScienceFriday.com on December 31, 2009

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