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When It Comes to Romantic Gift-Giving, Humans Aren’t Alone. Snails, Birds and Flies All Woo Each Other With Presents
For some animals, romance goes more smoothly when it comes with gifts. iStock / Moncherie Every year, Americans spend about $25 billion on presents for Valentine’s Day. When it comes time to propose, a sweetheart will spend an average of about $6,000 …