Ethiopia's controversial mega-dam

Ethiopia's construction of a massive dam on a tributary of the Nile River, which the UN Security Council meets about on Thursday, is raising regional tensions notably with Egypt, which depends on the Nile for 97 percent of ...

What is the longest river in the world?

Planet Earth boasts some very long rivers, all of which have long and honored histories. The Amazon, Mississippi, Euphrates, Yangtze, and Nile have all played huge roles in the rise and evolution of human societies. Rivers ...

Archaeologists on ancient horse find in Nile River Valley

An ancient horse burial at Tombos along the Nile River Valley shows that a member of the horse family thousands of years ago was more important to the culture than previously thought, which provides a window into human-animal ...

Climate and drought lessons from ancient Egypt

Ancient pollen and charcoal preserved in deeply buried sediments in Egypt's Nile Delta document the region's ancient droughts and fires, including a huge drought 4,200 years ago associated with the demise of Egypt's Old Kingdom, ...

New mosquito species reported in Florida

Another new mosquito species has made its way across the tropics into Florida, making a permanent home in at least three counties. Scientists are concerned because of the rate of new mosquitoes arriving in Florida and the ...

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