I, the copyright holder of this work, release this work into the public domain. This applies worldwide. In some countries this may not be legally possible; if so: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

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• derivative work: mario modesto (talk)

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This is a retouched picture, which means that it has been digitally altered from its original version. Modifications: Spanish version. The original can be viewed here: BirdRespiration.svg: . Modifications made by Mario modesto.

I, the copyright holder of this work, hereby publish it under the following license:

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I, the copyright holder of this work, release this work into the public domain. This applies worldwide. In some countries this may not be legally possible; if so: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

This image is a derivative work of the following images:

• File:BirdRespiration.svg licensed with PD-self
  • 2007-12-11T09:45:22Z Shyamal 1211x1361 (33004 Bytes) {{Information |Description=Bird respiration |Source=own work based on R McNeill Alexander. Animals |Date=December 2007 |Author=L. Shyamal |Permission=pd |other_versions= }} [[Category:Birds]]

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