Every year at the beginning of spring, frogs, toads and newts embark on an often life-threatening journey to their spawning grounds. And later they have to return...

Although they have been fully protected for more than 60 years, all 18 native bat species are considered endangered or even threatened with extinction according to the Red List.

The wolf is a strictly protected species in Germany and has been reintroduced to Lower Saxony under its own steam.