Bees aren't out to get you, but some pack a painful punch if pushed too far. There are over 20,000 bee species worldwide, but here we narrowed it down to the 15 that stand out for their sting strength ...

Andony Melathopoulos takes a seat and flips on the harsh light to his microscope. He places a bee under the lens and peers through, adjusting the focus for a clear view. Melathopoulos, an associate ...