Research shows that bees possess a mathematical ability once thought to exist only in dolphins, primates, birds and humans who are beyond the preschool years.
Hurricanes are moving more slowly than they used to. That means storms are dumping more rain and doing more damage when they make landfall, as Hurricane Harvey did when it lingered over Houston.
A clinic in Kiev, Ukraine, stirs controversy by making babies with DNA from three different people to help women who are infertile bear children. It's the only clinic known to be doing this right now.
We look at results after eight states had primary elections Tuesday. Also, Facebook gave data access to Chinese companies, and a look inside a controversial Ukrainian clinic making embryos.
Physicists' understanding of the nature of the universe has taken a blow. An experiment with neutrinos has produced a result that breaks the rules scientists think govern the subatomic world.