One of the animals Flach managed to track down was the critically endangered Saiga antelope. The Saiga's natural habitat is in the vast Eurasian Steppe area stretching through Romania, Moldova, Ukraine, Russia, Mongolia and more.
Here's the magnificent Saiga, who is relatively unknown and would probably feel at home in the cantina in Star Wars.
Flach said he pursued the Saiga in the area around the Caspian Sea during summer. He waited in a hideout close to where they go for water but says the summer temperatures distorted his photos. He added:
So we went back in the winter when it was -30C and I was lying down on the ground in camouflage for three days using the longest possible lens, and finally got the shot.
The majestic snow leopard is one of the most endangered big cats, with its mountain territories shrinking due to farming and climate change, and an average of four snow leopards killed every week since 2008.