First study to show that birds and not just mammals copy yawns

Have you ever caught yourself yawning right after someone else did? The same happens to budgies, says Andrew Gallup of State University of New York in the US. His research team is the first to note that contagious yawning also occurs between members of a bird species. Thus far, it has only been known to happen with a few mammals. The results are published in Springer's journal Animal Cognition.

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