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photographing and learning about wildlife
Biology student at ULM. I'm interested in any field related studies such as Herpetology, Mammalogy, Ichthyology, etc.
I would say Muskrat because its tail looks to be flattend where as Nutria (Myocaster coypus) have a more rounded tail, like that of a rat. This guy also looks to be about the same size as the chicken making him small where as nutria tend to be larger than a muskrat. :P
Red-Eared Sliders also do not always have red ears either, due to pigmentation issues or as some age, especially the males, they will become almost melanistic, its usally good to look at the plastrons as the Red-Eared Sliders have fairly distinct markins on them. Not saying these guys are Red ears just random info. :P