DAKAR, Feb 3 (Reuters) - The Eastern Congo rebel alliance that includes the M23 has declared a ceasefire for humanitarian reasons starting on Feb. 4, the group known as the Congo River Alliance ...

TIBU, Colombia, Feb 4 (Reuters) - Residents of Colombia's troubled Catatumbo region, near the eastern border with Venezuela, are weighing whether to return home after attacks by a rebel group ...

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A near complete skull fossil found in Antarctica has revealed the oldest known modern bird — a mallard duck-size creature related to the waterfowl that live by lakes and oceans today ...

The fossilized skull of a bird called Vegavis, which lived in the Antarctic some 68.7 million years ago, confirms it was an early member of the waterfowl group. However, the skull also suggests ...