1 day after people
While zoo animals are hunger and thirsty, many animals in hunting ranches like water buffaloes, cape buffaloes, kudus, zebras, emus, ostriches, giraffes, thomson gazelles, fallow deer, white tailed deer, bison, ibex, sika deer, russian hogs, elk, axis deer, bongo, black bucks, oryx, wild sheep, mountain goats, wildebeests, pronghorn, and gemsboks are not only surviving, they're thriving, for now.
2 months after people
The animals in the hunting ranches are now starting to notice something unusual, soon many predators like wolves, coyotes, bears, mountain lions, african lions, tigers, liger, panthers, leopards, jaguars, feral dogs, african wild dogs, and indian wild dogs, and even komodo dragons and crocodilians are taking advantage of these ranches, now were humans once hunted these animals for trophies, and to preserve these species, is now many predators buffet, now these animals must leave or become lunch.
200 years after people
Now the animals from the ranch have since escaped and there descendants now thrive in this world, and even spread to nearly all of North american and south america, and spreaded to some parts of Asia, and Europe.