green-algae: The mouth of a juvenile American paddlefish [Polyodon spathula] in a tank at the Garris
![green-algae: The mouth of a juvenile American paddlefish [Polyodon spathula] in a tank at the Garris](https://64.media.tumblr.com/7b37a5321f781d55a0f00c3d530f1dd3/tumblr_pphzpcGjLL1w340i1o1_1280.jpg "green-algae: The mouth of a juvenile American paddlefish [Polyodon spathula] in a tank at the Garris")
green-algae: The mouth of a juvenile American paddlefish [Polyodon spathula] in a tank at the Garrison Dam National Fish Hatchery in Riverdale, North Dakota. Image by the U.S. Fish and Wildlife Service. -- source link
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