Image Gallery: Invasive Species

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The Invaders

Credit: Roy Wood, National Park Service
They are aliens that use their physical or other prowess to take over other ecosystems, having profound effects or native residents and the environment…Read More »

as a whole. They're called invasive species, and they come in various shapes and sizes, from the giant Burmese python to the teensy West Nile virus, spanning both animal and plant worlds. Here's a look at some of these pesky invaders.   Less «
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