Can't see the Tundra for the Trees
A study in Canada revealed that the tundra is shrinking in response to global warming.

Strange Relations
A tiny grass family turns out to be an ancient flower lineage.

Sharks Dwindle; Shellfish Suffer
The sea is running out of sharks and that's bad news for shellfish.

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.

A Human Shield--for Moose
Moose are birthing babies closer and closer to the road.

Lousey Death
Pink salmon populations are careening towards collapse--but this time fishing isn't the cause.

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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A Thicker Skin--for Snails
Snails bulk up their shells in response to predators. What triggers the process? (2008-06-10)

Trouble in the Tropics
Tropical species may be at greatest risk for extinction due to climate change. (2008-09-04)

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)

Lake Tanganyika Heating Up, Warmest In 1,500 Years
Lake Tanganyika in east Africa is getting warmer, say geologists from Brown University. (2010-05-19)

Darwin’s Fox: The Rarest In South America
Darwin’s fox can’t find enough temperate rainforest on Chile’s southern coast. (2010-10-25)