Ebola kills roughly half the people it infects, but that has more to do with the kind of care patients can access, rather than something inherent to the virus itself.
The Primary used to be just the first step in the electoral process — now the primary has transformed, in many places into the moment when the election is all but decided. It's shaping Congress.
There have been hundreds of thousands of casualties on both sides of the war in Ukraine, and by some estimates more than 80% are now caused by drones. It's changed the nature of battlefield medicine.
Conservationists are celebrating the first Yellowstone-area grizzly cub born with DNA from outside that genetically isolated population. It's a milestone for the species.