Yuba City is a city of California next to Marysville. Without humans, how long will it take for this city to disappear and get replaced by grasslands?

Life After People

1 Second After People

Humans disappeared.

6 Hours After People

Many cats and dogs in many of their owners's houses got out, but cats and dogs aren't the only animals now thriving in Yuba City. There are escaped parrots, (cold-tolerant) bearded lizards, and few others that are also flourishing in Yuba City.

3 Days After People

Some farm animals including cattle, pigs, sheep, goats, and horses got out of their paddocks and cages, thus roaming in the streets, parks, parking lots, and suburbs of Yuba City.

1 Month After People

Many feral (former domestic) animals, parrots, and some exotic reptiles are doing well in Yuba City (except pigs, which had completely interbred with introduced wild boars). But domestic animals, parrots, and pet reptiles are not the only animals that thrive here, some escaped zoo animals that came from nearby sanctuaries and zoos (such as Sacramento zoo, Kirshners Barry Wildlife Foundation from Oroville, Oakland zoo, Folsom zoo, Happy Hallow park & zoo, and San Fransisco zoo) have spread into other parts of California (including Yuba City). Many species of exotic wild animals [such as giant anteaters, aardvarks, jaguars, leopards, peccaries, tapirs, tigers, lions, guenons (species of monkeys), snow leopards, servals, coatis, lemurs, fossas, meerkats, wallabies, wallaroos, kangaroos, lynx, bobcats, fennec foxes, caracals, tegus, monitor lizards, iguanas, nonnative skinks, ocelots, alligators, caimans, crocodiles, zebus (Indian cattle), capybaras, cormorants, squirrel monkeys, plovers (bird species), speckled pigeons, black-necked stilts, crested wood partridges, fulvous whistling ducks, white-faced whistling ducks, wild swan geese, flamingos, pelicans, white-faced sakis (monkey species), apes (including orangutans, chimpanzees, and gorillas), red river hogs, yellow-backed duikers, zebras, tamanduas, fruit bats (also including flying foxes), hornbills, burrowing owls, crested couas, ostriches, emus, guineafowls, monal pheasants, kookaburras, crested screamers, lapwings, chuckwallas, tortoises, warthogs, vervet monkeys, elks, elephants, cape buffaloes, binturongs, jackals, wild Asian water buffaloes, American bison, camels, baboons, giraffes, elands, hyenas, wolves, sun bears, spoonbills, ibises, weaver birds, Colorado river toads, Madagascar hissing cockroaches, many species of stick insects, leafcutter ants, honeypot ants, rhinos, California condors, guanacos, mandrills, hippos, patas monkeys, macaques, koalas, langurs, kudus, prairie dogs, peacocks, bongos, wolf-dog hybrids, raccoons, skunks, Guinea pigs, ferrets, ringtail cats (relatives of raccoons, despite their name), spider monkeys, and civets] now roam Yuba City, with some animals like hippos and crocodilians living in Rivers and Lakes of Yuba City.

1 Year After People

Plants take over many buildings and other manmade structures.

10 Years After People

Many offices, churches, former human houses, stores, restaurants, and schools are now homes to many squirrels, raccoons, skunks, opossums, feral cats, dogs, coyotes, foxes, deer, bears, hyenas, horses, donkeys, cattle, wild boars, sheep, goats, koalas, wallabies, wallaroos, kangaroos, buffaloes, bison, camels, guanacos, and other species.

30 Years After People

Lots of buildings are badly damaged by rain, wind, and other elements. All roads of Yuba City gets completely covered by grass and other plants.

60 Years After People

Many houses in Yuba City are now gone forever. Some buildings will outlast these houses, but won't survive any longer.

120 Years After People

Some of the last recognizable manmade structures such as the church and the water tower of Yuba City finally collapses due to lack of maintenance, the church collapses like an implosion of a casino. Yuba City is now really unrecognizable.

1,500 Years After People

Yuba City is now a grassland like how it was after the last Ice Age and before humans came to Yuba City. Yuba City is now more than 100 feet above sea level rather than at the sea level (due to California being pushed upward). Yuba City is now home to many wildlife such as feral sheep, cattle, wild boars, goats, few (surviving) dog breeds [including Anatolian shepherds, lacy dogs, golden retrievers, and Portuguese water dogs], wolves, Asian wildcat-like descendants of feral cats, horses, donkeys, zebus, deer, bears, cape buffaloes, water buffaloes, bison, antelopes, anteaters, aardvarks, hyenas, fossas, monkeys, apes, giraffes, elephants, camels, guanacos, emus, ostriches, parrots, whistling ducks, hippos, crocodilians, iguanas, monitor lizards, zebras, fruit bats, meerkats, rhinos, tapirs, peccaries, and many other animals (which had became part of Yuba City's ecosystem).

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