It seems you dog might know the world is coming to an end before you realize it.
Dr. Cameron Carlson of the Zombie Research Society (Yes, such a thing exists) says if your dog starts acting a little strange you should get suspicious yourself. He claims off-behavior could mean they smell the undead a mile away, maybe even before the first one rises.
He also believes dogs might be able to sniff out a zombie virus way before the apocalypse has a chance to start thanks to their powerful sense of smell. Carlson also says birds might change their flight patterns , or will avoid certain areas if an apocalypse is looming. Finally, he says the best way to survive a zombie apocalypse is to start building your survival skills now. So don’t say you haven’t been warned.