Once a year, the bugs emerge — millions of them. Every summer, they swarm en masse around the banks of the Mississippi River. It’s mating season for mayflies.
There are so many of them, in fact, that...
Earth is known to be home to some fascinating, seemingly otherworldly places. One such place is Vale da Lua in Brazil, which is adjacent to the Chapada dos Veadeiros National Park in the Brazilian Highlands....