Complex sentence: Nordens ark has participated or is currently taking part in re-population projects, to release animals born at the facility into the wild, including the white stork, eagle owl, bell frog, otter, European wildcat, and lynx.
Split into simpler sentences: Nordens ark has participated or is currently taking part in a number of re-population projects, to release animals born at the facility into the wild. Some re-introduction projects that Nordens ark has been involved with are white stork, eagle owl, bell frog, otter, European wildcat, and lynx.