ring - The Environment Report

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The Consumer Product Safety
Commission has been working
to get lead out of kids’ toys.
Now, the government agency
is trying to determine whether
it can do anything about another
toxic chemical found in toys –
a heavy metal called cadmium.
Mark Brush has more:

The Consumer Product Safety Commission is reacting to a report by the Associated Press that found 12% of children’s jewelry had high levels of cadmium. Some of the pieces tested were almost completely made of cadmium. The heavy metal can cause kidney disease and it’s known to cause cancer.

Scott Wolfson is with the Consumer Product Safety Commission. He says that because of all the problems with lead in toy jewelry – the bottom line is that parents should just stay away.

“Over the past four years, we have done more than 50 recalls of more than 180 million units of jewelry. That’s astounding. It reached a point, where CPSC has been recommending to parents that they stop buying children’s metal jewelry for the youngest of kids.”

And some experts say – if you’ve got old toy jewelry in the house – it’s probably a good idea to get rid of it.

For The Environment Report, I’m Mark Brush.

Superfast muscles help this bird sing. (Photo by Brian Peterson)

Scientists have come one step closer to understanding how birds create their songs. The Great Lakes Radio Consortium’s Rebecca Williams explains:

Transcript

Scientists have come one step closer to understanding how birds
create their songs. The Great Lakes Radio Consortium’s Rebecca
Williams explains:

(dove song)

That’s a cooing ring dove. And this is a recording of special muscles
the dove’s using to control its song: (sound of muscle activity).

Those muscles are called aerobic superfast muscles. It’s a type of
muscle that has been found in rattlesnakes and some fish. The
muscles were just discovered in birds for the first time.

The research was published in the journal Nature. Coen
Elemans is the lead researcher. He says a unique quality of the dove’s
song led him to investigate it further.

“And we found that some of these doves have a trill in their song, they
make a sound something like (mimics dove song). And during this
short trill, you get elements that are so short, sometimes ten or nine
milliseconds, that I was wondering, how can this be done? This is so
fast that normal locomotory muscles you find in vertebrates cannot do the job.”

Elemans says this discovery could be just the beginning. He says
songbirds have more complex vocal systems than doves… so
songbirds could be using even faster muscles.

For the Great Lakes Radio Consortium, I’m Rebecca Williams.

Tag: ring

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