May 31, 2005

Medicinal Weeds- Origins

People have used medicinal plants for centuries, but how was this knowledge first learned?

May 30, 2005

Dead Zone – Causes

Off the coast of Louisiana there’s about 6000 square miles of ocean that’s virtually devoid of life.

May 27, 2005

Black Holes: X-Ray Emission

Black holes send off x-rays, and by translating the x-rays that we receive into pressure waves, we can recreate the sounds of a black hole.

May 26, 2005

Black Holes: Detection

Scientists trying to solve the mystery of black holes are facing one big question. How do you even find a black hole to begin with?

May 25, 2005

The Moon: Face

Who is that man on the moon? If you’re a scientist, that face isn’t much of a mystery — it’s a record of the moon’s history.

May 24, 2005

The Moon: Earthquakes

The gravitational pull of the moon causes our tides to rise and fall, and scientists think that it may have an influence on earthquake activity as well.

May 23, 2005

Ecuador: Cloud Forest

In times of drought, cloudforests, which support the same incredible diversity as rainforests, thrive almost entirely on thick blankets of fog.

May 20, 2005

Medicinal Weeds-Examples

They’re poisonous if used improperly, but in the hands of an expert, they can save lives.

May 19, 2005

Medicinal Weeds-Bioactive

Farmers and gardeners have been fighting weeds since time immemorial. Now it may time for the weeds to fight for us.

May 18, 2005

Antibiotics in Ancient Bone: Tetracycline

Scientists have discovered traces of tetracycline in preserved human bones from Sudan that date back more than 2,000 years.

May 17, 2005

Antibiotics in Ancient Bone: Beer

Take two beers and call me in the morning? Scientists now think that some ancient civilizations may have used bread and beer as a source of antibiotics.

May 16, 2005

Antibiotics in Ancient Bones

Traces of tetracycline have been found in the bones of people who lived more than 2,000 years ago, and scientists think that their diet may have been the cause.

May 13, 2005


In honor of Azorean Portuguese ancestors and a beloved queen, the festival of Chamarita is one of humble origin.

May 12, 2005

Medicinal Weeds-Getting to Know Them

Highland Maya children can often identify as many as 100 plants. How many local plants are you familiar with?

May 11, 2005

Medicinal Weeds-Overlooked Resource

Common pokeweed is being studied as a potential remedy for HIV.

May 10, 2005

Shorebirds: Western Sandpipers & Humans

Development along the California coastline is having an impact on Western Sandpipers and other shorebirds.

May 9, 2005

Shorebirds: Western Sandpipers Migration

Western Sandpipers are in a “frequent flyer” class of their own.

May 6, 2005

Shorebirds: Montague Island

Once a year on Alaska’s Montague Island, whole populations of shorebirds feast on a plethora of herring eggs.

May 5, 2005

Swifts in the Chimney

Twice a year thousands of Vaux’s Swifts use an elementary school’s furnace as a migratory stopover.

May 4, 2005

Medicinal Weeds-Living Pharmacy

It’s the world largest pharmacy and it may be no further than your back yard.

May 3, 2005

Medicinal Weeds- In Praise of

You’d be surprised to learn how many medicinal plants are considered to be “weeds”.

May 2, 2005

Carpenter Bees: Sneaky

Some female carpenter bees engage in artifice and deception.