We Finally Know What a Dinosaur’s Butthole Looks Like jwz

It’s rare to get a look at something soft and fleshy on a dinosaur…as your mom well knows. On the fossil, just below the tail, the butthole appears as a “blackish mottled ovoid area,” the paleontologists write. To the naked eye, the spot looks like a series of dark, stacked bands running between the base of the tail and hip bones, clearly different from the skin around it. […]Bird cloacae are round or square and…

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