PhysOrg Posted January 5, 2022 Share Posted January 5, 2022 At Christmas, thousands of greetings cards feature the iconic winter plumage of the robin. But not all the robins you might find in your backyard are permanent natives to your country. In the UK, for example, some will have migrated from Germany and Russia, and like millions of other animals all over the world, will return back to their breeding grounds next spring. This ebb and flow of birds, mammals, fish and insects is a key part of the Earth's biodiversity.View the full article Quote Link to comment Share on other sites More sharing options...
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