Pleistocene rewilding is the advocacy of the reintroduction of descendants of Pleistocene megafauna, or their close ecological equivalents. An extension of the conservation practice of rewilding, which involves reintroducing species to areas where they became extinct in recent history (hundreds of years ago or less).
Life After People
If Pleistocene Rewilding in Europe had already happened, this time in 1990's and 2000's instead of the future, what will happen to the introduced wildlife in Europe?
1 second after people
People had disappeared.
1 day after people
Power grids fail.
1 week after people
European bison, American bison, fallow deer, mouflons, musk oxes, Nortern bald ibises, Asian black bears, Asian elephants, Asian lions, dholes, dromedary camels, hippopotamuses, onagers, leopards, saiga antelopes, gazelles, elands, hyenas, Sumatran rhinos, white rhinos, wild water buffaloes, Barbary macaques, aurochs, cave lions, Irish elks (which aren't true elk, but large relatives of roe deer and red deer), Pyrenean ibexes, steppe bison, and woolly mammoths have started to spread from their introduced lands.
1 month after people
Despite competition from invasives, which aren't supposed to live in Europe, Asian elephants, Barbary macaques, hippos, rhinos, woolly mammoths, and other recently introduced and reintroduced species continued to thrive, even in life after people.
1 year after people
Barbary macaques, Asian elephants, woolly mammoths, hippos, onagers, rhinos, and others are now seen in abandoned cities, towns, urban and suburbs, and other human settlements of Europe, after their former rulers are gone.
10 years after people
Human settlements are starting to be replaced by grasslands, savannas, forests, and other native lands, allowing the camels, Asian elephants, hippos, rhinos, antelopes, leopards, Barbary macaques, onagers, woolly mammoths, and others to spread even further into more land areas.
1,000 years after people
In 1,000 years after people disappeared, all human settlements look like forests, swamps, and rainforests with some remaining buildings, while all animals that were part of the Pleistocene rewilding project had somehow survived, because they had adapted to the new ecosystem and have adapted to deal with the competition from native species and invasive species. Fortunately, non of the animals that are part of the Pleistocene Rewilding has negative impact to Europe, they actually have a positive impact to all of the environments of Europe. Lots of large Megafuana are back roaming Europe.