NATO defense ministers are set Thursday to approve plans to buy more weapons and military equipment to better defend Europe, ...

What do a sea unicorn, a termite gourmand, and a freshwater predator with dagger-like teeth have in common? Odd names aside, ...

The targets were Russian warplanes, including strategic bombers and command-and-control aircraft, worth hundreds of millions ...

The controversial program to return the predators to the American West has produced tension for three decades.

The dream of finding an all water route across North America, the mythical Northwest Passage, had been imagined since the ...

One of the last untouched ecosystems in the United States, the Arctic National Wildlife Refuge spans over 19 million acres in ...