diff --git a/sound/creatures/license.txt b/sound/creatures/license.txt
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+dog_yelp.ogg is DogYelp.wav, by TobiasKosmos (https://freesound.org/people/TobiasKosmos/sounds/163280/). It has been licensed under CC-BY 3.0 license.
+It has been cropped, EQ'd, and compressed to .ogg for in-game use.
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