Eske Willerslev

Dec. 18, 2009

The Dirt on Mammoth DNA

Researchers examining DNA evidence gathered from soil samples say that the woolly mammoth may have survived for thousands of years longer than the fossil record indicates.

mammoth, dna, extinction

Jul. 06, 2007

Ancient Dna Offers Clues About Climate Change

What can ancient DNA can tell us about the effects of climate change?

dna, ice cores, greenland, climate change

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Michael Pollan Talks Plants and Food

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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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