A hoarse sound abruptly wakes visitors staying at a floating house that serves as a base for environmentalists on the Jaraua river in the Amazon rainforest.
Costa Rica's Civil Aviation Authority announced it would start regulating unmanned aerial vehicles here by the end of the year. The new rules might have trouble getting off the ground, though, including one provision that would require businesses to pay more than $1,800 to use them here.
The ocean conservation group Turtle Island Restoration Network has teamed up with the imagery crowdsourcing platform Tomnod.com to launch a campaign that allows conservation-minded Internauts to identify illegal fishing boats in satellite imagery of Cocos Island National Park.
As UAVs are becoming more common among wildlife researchers and enthusiasts, there has been little research on how the animals actually react to the aircraft.
The video showing a handgun firing from its mount on a quadcopter was filmed by 18-year-old Austin Haughwout from Clinton, Connecticut. It's been viewed two million times on YouTube since it was posted July 10.
Conservationists hope unmanned aerial vehicles can help fight illegal fishing in Costa Rica's Cocos Island National Park. Similar drones have been used in South Africa to fight rhino poaching in national parks there.
You can forgive David Crosby for not remembering the Washington-area venue he was playing in the summer of 1994 when his liver finally gave out after so many blurry years of dope and drink. But he does recall that it took two guys to help him off the stage and back onto the tour bus.
