Veterinarian Carmen Soto is gently swabbing what is left of Grecia the toucan's bright beak, preparing to fit him with a prosthesis to replace the part hacked off by vandals.
In many Midwestern crop fields, excess water laden with nitrates drains into subsurface tile pipes and then flows into surface streams and rivers in the Mississippi River watershed. When the nutrient-rich field drainage reaches ...
What suddenly made the dinosaurs disappear 65 million or 66 million years ago? Whatever it was, all indications show that it was a massive extinction event. The fossil record not only shows dinosaurs disappearing, but also ...
The only thing interrupting the creosote and mesquite that make up one of New Mexico's most remote stretches of desert is a pristine runway where Virgin Galactic plans one day to launch the world's first commercial space-line.
Troy Bradley might have been exhausted and a bit dehydrated, but the words printed on his T-shirt said it all: "Failure is not an option."
After 200 million gallons of crude oil spilled into the Gulf of Mexico in April 2010, the government and BP cleanup crews mysteriously had trouble locating all of it.
Archaeologists continue to debate the reasons for the collapse of many Central American cities and states, from Teotihuacan in Mexico to the Yucatan Maya, and climate change is considered one of the major causes.
The number of Monarch butterflies that reached wintering grounds in Mexico has rebounded 69 percent from last year's lowest-on-record levels, but their numbers remain very low, according to the World Wildlife Fund.
From Asia, the red ambrosia beetle (Xyleborus glabratus) has proved its damaging potential in Florida, where it attacked different varieties of trees of the laurel family, including avocado, resulting in death.