Pretty fun little thought experiment here. What if an I Am Legend-esque event happened and all humans just disappeared from our third stone from the sun? What would happened?
This video goes for the jugular early — Your tiny pet dogs that are too helpless to survive on their own would get eaten by large packs of dogs hungry to hunt. All those nuclear power plants we’ve built? Boom! Then cities like Dubai and Vegas would get overtaken by sand, while coastal cities would go back to be swamps. Kind of wild that it’d only take 200-300 years for all the shiny new buildings around us to fall down from corrosion.