A comet that wipes out all the big mammals but one, humans?
Of course.
“The idea that a comet may have caused catastrophic climate change and extinction relatively recently in Earth’s long history suggests scientists shouldn’t dismiss the possibility of it happening again, Wolbach said.”
The History Channel has it covered.....over and overandover....
Humans were fairly well spread out across the globe, so it would not have killed off all of us...............