TIL: There is an extinct volcano sitting directly beneath the city of Jackson, Mississippi
. Specifically, it is approximately a half mile below the Mississippi Colosseum and state fairgrounds. In the late Cretaceous period — about 100 million years ago — this part of North America was under water. In fact, "North America" back then was actually more like a couple of mini-continents surrounded by ocean
. The Jackson Volcano was the heart of a 400-square-mile island in that sea. It hasn't erupted in 65 million years, but the ground is still hot enough that some local wells pump up 102°F water. [Edited to add that the relationship between groundwater temp and the Jackson Volcano may not be accurate. Eric Klemetti — geoscientist and Wired blogger — told me he would be surprised if an extinct volcano was the source of that heat.] — Maggie
Zigong Dinosaurs World Science & Technology Co.,Ltd. makes, as you can probably guess from the name, animatronic dinosaurs. Which, for some reason, they attempt to sell via spam email marketing. We at BoingBoing have gotten spam like this before, from other manufacturers in the surprisingly robust Chinese animatronic dinosaur industry. What made this particular email stand out to me, though, was the above picture, of an animatronic Glyptodont covered in fur.
Now, I'd seen Glyptodonts before, but the reconstructions that I remember came across more as giant armadillos, as opposed to the huge beaver with a shell on its back that you see here. So I contacted Brian Switek, my favorite dinosaur blogger, to ask him which image of the Glyptodont is the correct one.
His response: They both are.
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