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In the summer, there is a concern for hedgehogs in traffic. Sending a postcard is an easy way to keep in touch and is as welcome as a letter. The postcard aims to raise awareness about protecting Swedish nature, especially hedgehogs. This postcard was printed by Posten in 1974. Hedgehogs are small spiny mammals found in Europe, Asia, and Africa. They are nocturnal and mainly insectivores. Posten is the Swedish postal service, which has been operating since 1636. The postcard serves as a reminder to be mindful of wildlife and the environment.