THIS!

some people blindly react to everything "nature" or "non-humans" as purely good...

without thinking that maybe the animals moving to Chernobyl area might not be living their best lives, because the human-generated radiation is still there...

its barely negligible apparently. the only danger is the red forest, and truffle,fungi that grow that which hyperaccumulates the radioisoptopes, they found the wild boars had hight amounts of those isotopes, they couldnt figuer it out until they found them eating the fungi.

Really, the risk of radiation is pretty damn low. There are some hot spots, and maybe you'd find a hot piece of material (probably not) but it's mostly just wilderness that has restricted access. It's not dangerously radioactive. Even in Pripyt it's mostly fine. You can even get close to the destroyed reactor and be OK. Keep in mind, the last reactor at Chernobyl only stopped operating in 2000.

presumably their ability to reproduce happens before the radiation and mutations overcome their bodies.

Good ole fashioned evolution baby

Everyone should! Let's all book trips to the place with no humans and look at it, so we can take pictures and tell more people about it. It's so calming and relaxing, we should go there more often. Maybe someone could sell some merch...

those are descended from domesticated horses(botai horses which is seperate from the current well know horses) not a true wild species, WIld horse species are pratically extinct since the last ice age, and they evolved in north america. other equine species do still exist like oangers, and zebras. its the prewelzakis horse.