From similarity and differences of morphological, biochemical, cellular characteristics, biologist have constructed 'phylogenetic (evolutionary) trees' (who is most closely related to who, analogous to a family tree)
In the United States, lightning routinely kills more people each year than tornadoes or hurricanes. Tornadoes, hail, and wind gusts get the most attention, but only lightning can strike outside the storm itself. Lightning is the first thunderstorm hazard to arrive and the last to leave.
With a smaller population and land mass, the UK has fewer deaths from lightning strikes. According to the tornado and storm research organisation (Torro) database, 30 to 60 people are struck by lightning each year, with an average annual death toll of less than five. Lightning strikes tend to be concentrated in the south-east, because of the warmer average temperatures.