PHILADELPHIA (WPVI) -- A Winter Storm Warning and Winter Weather Advisory go into effect very early Monday morning as parts of the region brace for heavy snow. Here are the snow arrival times ...

Russia and other hostile states have become increasingly brazen in adopting “gray zone” attacks against Europe and the United States, leaving defense officials with a dilemma: How to respond ...

Twins are pretty rare, accounting for just 3% of births in the U.S. these days. But new research shows that for primates 60 million years ago, giving birth to twins was the norm.

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