Flora and Fauna, they look healthy indeed.All the flora and fauna in Chernobyl is healthy. It's only the movies adding a desaturation filter that makes post-apocalypse look dead. Past the 'ash phase' where everything's covered in dust, it'll all look normal and green again.
http://www.ibtimes.co.uk/chernobyl-...e-abandoned-ghost-town-pripyat-photos-1523628
And a lot of the 'grey and dead' look from those photos is just because it was Soviet Russia! Plus grass is exremely resilient and will get everywhere. We put plant-killing poisons on our lawns to kill everything expect the grass coz it's well 'ard!