Swans swimming together and bickering in a lake. Engraving by H. Le Roy.

You can use this work for any purpose, including commercial uses, without restriction under copyright law. You should also provide attribution to the original work, source and licence.

Creative Commons Attribution (CC BY 4.0) terms and conditions https://creativecommons.org/licenses/by/4.0

Credit: Swans swimming together and bickering in a lake. Engraving by H. Le Roy. Credit: Wellcome Collection. Attribution 4.0 International (CC BY 4.0)