Robosquirrels versus rattlesnakes

Robot squirrels from the University of California, Davis, are going into rattlesnake country near San Jose, continuing a research project on the interaction between squirrels and rattlesnakes.

Interior: Grouse listing warranted but precluded

(AP) -- The Interior Department announced Friday that it won't list sage grouse as endangered or threatened but will classify the bird among species that are candidates for federal protection.

Report: Birds endangered by energy development

(AP) -- As the Obama administration pursues more homegrown energy sources, a new government report faults energy production of all types - wind, ethanol and mountaintop coal mining - for contributing to steep drops in bird ...

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