Mae dwrgwn neu ddyfrgwn yn byw mewn dŵr ffres neu mewn dŵr halen. Maen nhw'n bwyta pysgod yn bennaf.
Mamaliaid
Otter | Otter | nutria | Lontra | カワウソ
This article is licensed under the GNU Free Documentation License. It uses material from the "Dwrgi".
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