Leech On Me
A 200-year-old controversy is put to rest: Genetic tests show that FDA-approved leech is not one species, but three.

SciFri File: Genetic Testing for Breast and Ovarian Cancer
A company is mass-marketing a genetic test for breast and ovarian cancer. Would you get tested?

Genome of dandruff-inducing fungus sequenced
Unwanted flakes? Scientists inspect the genes of the fungus responsible for dandruff.

Fountain of Youth for Yeast
Diet and gene modification make baker's yeast live ten times longer than its life expectancy.

A Window into the Heart ... and Everything Else
A transparent fish reveals the inner-workings of the body.

Extinct Genes Resurrected
Researchers took DNA from the extinct Tasmanian tiger and put it in a mouse.

Particles of Science

Two Scientists Walk Into a Bar

Need a laugh? Get some good science jokes (and a bunch of groaners, too) in our chat with three science comedians.

Secret To Eternal Life...For Xmas Trees

Raj Lada is on a quest to keep your Christmas tree thriving in the afterlife. Get his embalming tips.

Your Lichen Glamour Shots

SciFri listeners from across the country sent in photos of lichens from their neighborhoods. Lichenologist James Lendemer identified them. Check it out!

Geek 2.0

Have you noticed that the word "geek" has gotten a little chic? Maybe it's time for a new term for those of us true geeks. Tell us your suggestion for the new geek.

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Hunting for caribou ancestry
Scientists are studying ancient caribou in the Yukon (2010-02-25)

The Curious Case Of The California Tiger Salamander
A salamander native to Texas is wreaking havoc on the wetlands of Northern California. (2010-03-10)