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Making America's Best Idea Even Better
Grand Canyon National ParkRanger Minute with stopwatch
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Grand Canyon National Park
Teamwork in the Natural World (wmv)
Ranger Minutes are short audiocasts or videocasts in which a park ranger shares interesting stories and information about Grand Canyon National Park.

 
In the natural world, when plants and animals benefit each other we call it a symbiotic relationship. Here at Grand Canyon National Park, we have lots of examples, including the relationship between yucca moths and yucca plants, between tassel-eared squirrels and ponderosa pines, and between badgers and coyotes.

You may need to click on the player to activate it, then press the play button. It may take a minute for the video to start.

 
If your playback is uneven and you would rather download the file to your computer,
cut and paste this link into your media player: (8.02MB WMV File) Duration 2:53
http://www.nps.gov/grca/photosmultimedia/upload/080508team.wmv
Download the transcript (23kb PDF File) photo credits (16kb PDF File)
GRAND CANYON ROCKS  

Did You Know?
The more recent Kaibab limestone caprock, on the rims of the Grand Canyon, formed 270 million years ago. In contrast, the oldest rocks within the Inner Gorge at the bottom of Grand Canyon date to 1.84 billion years ago. Geologists currently set the age of Earth at 4.5 billion years.

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Last Updated: May 10, 2008 at 15:14 EST