"Murder hornet," invasive insect from Japan, found in the U.S.
A roughly 2-inch long insect known as the "murder hornet" has made its way to the U.S. for the first time ever. The Asian giant hornet, Vespa mandarinia, has been known to kill up to 50 people a year in Japan and has the potential to devastate U.S. bee populations, which have already been declining.