Teamwork in the Natural World at Grand Canyon National Park (video)
Update: 2010-04-30
Description
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. http://www.nps.gov/grca
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