RT @friel: @jaimiAgray Cool! Weird vertebral armor like this has evolved at least three times independently in catfishes (Aspredinidae, Dou…
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RT @friel: @jaimiAgray Cool! Weird vertebral armor like this has evolved at least three times independently in catfishes (Aspredinidae, Dou…
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RT @friel: @jaimiAgray Cool! Weird vertebral armor like this has evolved at least three times independently in catfishes (Aspredinidae, Dou…
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@jaimiAgray Cool! Weird vertebral armor like this has evolved at least three times independently in catfishes (Aspredinidae, Doumeinae, and Sisorinae). Here is an image of the anterior vertebral column from an aspredinid catfish that colleagues and I descr