Shhh. Hear the rustle of grass? Not so much now in US parks

WASHINGTON (AP) -- The call of the wild is getting harder to hear....

Robots, high-tech tools join battle against invasive species

WASHINGTON (AP) -- A robot zaps and vacuums up venomous lionfish in Bermuda. A helicopter pelts…

Robots, high-tech tools join battle against invasive species

WASHINGTON (AP) -- A robot zaps and vacuums up venomous lionfish in Bermuda. A helicopter pelts…

At least global warming may get Americans off the couch more

WASHINGTON (AP) -- Global warming's milder winters will likely nudge Americans off the couch more in…

At least global warming may get Americans off the couch more

WASHINGTON (AP) -- Global warming's milder winters will likely nudge Americans off the couch more in…

Another nearby planet found that may be just right for life

WASHINGTON (AP) -- Astronomers have found yet another planet that seems to have just the right…

Report: Can’t blame El Nino as global temps spike in March

WASHINGTON (AP) -- In what scientists call a clear sign of a warming world, Earth's temperatures…

Another nearby planet found that may be just right for life

WASHINGTON (AP) -- Astronomers have found yet another planet that seems to have just the right…

Report: Can’t blame El Nino as global temps spike in March

WASHINGTON (AP) -- In what scientists call a clear sign of a warming world, Earth's temperatures…

Canada glacier melt rerouted in rare case of ‘river piracy’

WASHINGTON (AP) -- Scientists have witnessed the first modern case of what they call "river piracy"…