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The surprise find of smallpox DNA in a child mummy from the 17th century could help scientists start to trace the mysterious history of this notorious virus.

Smallpox currently only exists in secure freezers, after a global vaccination campaign eradicated the virus in the late 1970s. But much about this killer remains unknown, including its origins.

In 2015, Lida Xing was visiting a market in northern Myanmar when a salesman brought out a piece of amber about the size of a pink rubber eraser. Inside, he could see a couple of ancient ants and a fuzzy brown tuft that the salesman said was a plant.

As soon as Xing saw it, he knew it wasn't a plant. It was the delicate, feathered tail of a tiny dinosaur.

Giraffes are dying at an alarming rate and could face extinction if the trend doesn't reverse, according to a new conservation report on animal populations worldwide.

The report was released by the International Union for the Conservation of Nature, which maintains the so-called Red List of species threatened with extinction.

To Donald Trump, one of President Obama's major failings was his refusal to identify "radical Islam" specifically as America's top adversary.

"Anyone who cannot name our enemy is not fit to lead this country," Trump told a crowd in Ohio in August. "Anyone who cannot condemn the hatred, oppression and violence of radical Islam lacks the moral clarity to serve as our president."

A magnitude 6.5 earthquake struck about 100 miles off the Northern California coast on Thursday morning, according to the U.S. Geological Survey.

The Pacific Tsunami Warning Center said the earthquake, originally reported to have a magnitude of 6.8, wasn't powerful enough to generate a destructive tsunami. No damage or injuries were reported.

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