1 day after people
Many animals in zoos, safari parks, and homes are starving and dehydrated many insects in zoos have died, but in hunting ranches many exotic animals such as zebra, deer, water buffalo, bison, kudu, bongo, giant pandas, peafowls, red pandas, chimpanzees, orangutans, gorillas, lemurs, emu, Waterbuck, black buck, and other exotic animals are thriving in their homes but how much longer do they have until they have to leave their ranches?
1 week after people
Some apes (such as some gibbons), amphibians, and some small lizards are dead in zoos while the rest of the animals have escaped into their new home. Without humans, fully-grown elephants have no natural predators, while many canines, and big cats are trying to make it in a tough world, zoo's monkeys and feral monkeys such as vervet monkeys and macaques have escaped and now wreak havoc on California homes and stores. The native fauna is even doing better without people around to hunt them, but who will still be around in this new age?
5 years after people
Most Dogs and wolves have interbreed and now roam California hunting elk, bison, buffalo, cattle, horse, zebra,and many types of gazelles and other antelopes, but they are not the only new predators in the state, many big cats such as florida panthers, cougars, african lions, leopards, cheetahs, jaguars, and tigers now stalk California and their populations are growing fast, along with hippos, waterbuck, lemurs, zebra, baboons, vervet monkeys, hyenas, cattle, giraffes, camels, alpacas, llamas, elephants, crocs, peafowls, cassowaries, resus monkeys, bongo, black buck, chimpanzees, orangutans, gorillas, many types of deer, rhinos, wallabies, fruit bats, bison, giant pandas, water buffalo, komodo dragons, kangaroos, ostriches, emus, wild hogs, many types of gazelles, red pandas, bobcats, lynx, kudu, koalas, wombats, mongooses, tasmanian devils, African wild dogs, Asian wild dogs, lemurs, tasmanian devils, wolves, coyotes, black bears, grizzly bears, armadillos, peccaries, tapirs, and otters have now become part of California's fauna.
5,000 years after people
Many of the descendants of escaped Californian zoo animals such as water buffaloes, giraffes, big cats, apes, lemurs, monkeys, antelopes (including gazelles), emus, ostriches, cassowaries, peafowls, pandas, kangaroos, wallabies, and the rest of other escaped zoo animals descendants spread out to Texas, Florida, and other reigns of the U.S.
100,000 years after people
California now is in the middle of the next Ice Age, but looks like a mixture of African rainforest and Californian grasslands/forests (due to the tropical plants changing te habitat around it), despite this, much of the wildlife has returned to their pleistocene roots, for example, now there are new mammoths, mastodons, giant beavers, giant carnivorous bears, giant armadillos, american lions, dire wolves, ice age peccaries, tapirs, giant elk, deer, and bison, giant capybara, giant alligators and much more pleistocene animals are back once more and now thrive in their new home.