In meadows or along riverbanks, in trees or underground, animals build their nests. The mole is greedy, so it fills its pantry with earthworms to satisfy its cravings at any time. The badger, for its part, digs a new exit to reach its string of outdoor toilets. No question of dirtying its burrow! As for the incredible beaver, it waterproofs its lodge with birch branches it gnawed earlier in the morning. Whether to protect themselves from danger or to prepare a precious cocoon to welcome their young, animals are incredible architects!