Aurochs, external were once found across Europe, including Scotland, before habitat loss and hunting wiped them out in the 17th Century ... has introduced tauros to Côa Valley in north-eastern ...
Why it's incredible: The cave is so deep, the world's tallest building could fit inside it. The Hranice Abyss — or "Hranická propast," in Czech — is the deepest known freshwater cave in the ...