This is because European animals must reach a larger size and greater weight to survive the 6 month long period of hibernation .
Since coming to New Zealand the hedgehog has grown a little smaller and never reaches the size or weight of animals in Britain and continental Europe .
This is because Europe animals must reach a larger size and greater weight to survive the 6 month long period of hibernation .
Since coming to New Zealand the hedgehog has grown a little smaller and never reaches the size or weight of animals in Britain and continental Europe .