Hints: Hints: resin -- hair Europe -- the mammals 破折号前后有空格 subtropical tapirs anteaters Messo Germany

It's the fossilized resin of ancient pine trees. And trapped within it, are perfectly preserved souvenirs, each fragment helping to build a picture of an ancient world. This resin has also trapped something that marks a great turning point in evolution -- hair. Its presence indicates the rise of a new dynasty in Europe -- the mammals. These subtropical forests were home to a huge variety of these creatures. From kangaroo-like carnivores and tapirs to anteaters and even miniature horses. 15 million years ago, the mammals were evolving at an astonishing rate. From just one site of Messo in Germany, dozens of different species of fossil mammal have been unearthed. Today, their more recognizable descendants occupy virtually every niche right across Europe.

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