Florida's Everglades put on world heritage endangered list

Florida's Everglades and Madagascar's tropical forest were added Friday to a list of imperiled world heritage sites by UNESCO officials who also registered lesser threats to Peru's Machu Picchu ruins and the Galapagos Islands.

Burmese pythons pose little risk to people in Everglades

The estimated tens of thousands of Burmese pythons now populating the Everglades present a low risk to people in the park, according to a new assessment by U.S. Geological Survey and National Park Service scientists.

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