What can postage stamps tell us about biodiversity conservation? When Andr? Nem?sio isn’t studying biology, he collects stamps . Andr? and his colleagues Diana Seixas and Heraldo Vasconcelos recently cataloged the animals represented on hundreds of thousands of postage stamps for sale on Delcampe and eBay . They found that 60% of stamps feature birds or mammals, even though birds and mammals …
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