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Other archives from the Nature & Science website:
Air Did You Know Archive
Biology Did You Know Archive
Geology Did You Know Archive
Natural Sounds Did You Know Archive
Water Did You Know Archive
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DID YOU KNOW?
Joshua
Tree National Park consists of nearly 800,000 acres
set aside to protect the unique assembly of natural
resources brought together by the junction of three
of California's ecosystems.
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DID
YOU KNOW?
Freshwater mussels (Phylum Mollusca, Class Bivalvia) have suffered a greater decline than any other wide-ranging faunal group in North America. Because of the decline of mussels throughout North America, many National Park System units are destined to become important refuges for this endangered group of animals.
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DID
YOU KNOW?
Denali National Park and Preserve's more than 6 million acres encompass a complete
sub-arctic ecosystem. Denali is well-known for its diversity of wildlife. There
are 39 species of mammals (including large mammals such as grizzly bears, wolves,
Dall sheep, and moose), 167 species of birds, 10 species of fish, and one species
of amphibian known in Denali. There are no reptiles recorded in Denali.
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DID
YOU KNOW?
The National Park Service operates digital cameras
at many parks. These cameras often show the effects
of air pollution such as visibility impairment.
Because these cameras are typically located near
air quality monitoring sites, the camera web pages
display other information along with the photo
such as current levels of ozone, particulate matter,
or sulfur dioxide air pollutants, visual range,
and weather conditions.
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DID YOU KNOW?
Cape Lookout National Seashore protects one of the few remaining natural coastal barrier island systems in the world. Much of the islands' natural environment and ecosystems remain intact.
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