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FIGURE 1. The iconic Columbian mammoth family at La Brea Tar Pits sculpted by Howard Ball. Image by Y-Z on




FIGURE 2. A. Mural of La Brea Tar Pits painted by Charles Knight in 1925. B. Mural of La Brea Tar Pits painted by Mark Hallett in 1988 ©Mark Hallett. The Hallett image is not published under the terms of the CC-BY license of this article. For permission to reuse, please contact Mark Hallett.




FIGURE 3. A. Low immersion conditions used a handheld smartphone. B. High immersion conditions used a smartphone inserted into an inexpensive headset. C. To provide binocular vision in the headset, the smartphone screen is split into two smaller images, greatly reducing available screen space and resolution.




FIGURE 4. Stages in the development of a low poly dire wolf model. A. Mesh showing the overall 3D shape of the model. B. Rigging showing the model’s skeleton. Colors represent the “weights” of different bones and joints on the overall model’s deformation while moving. C. The 2D texture file. D. The finished, rigged model with texture correctly wrapped around the mesh.




FIGURE 20. Snapcodes for A. saber-toothed cat, B. dire wolf, and C. Shasta ground sloth. Using the popular Snapchat app, these codes activate interactive AR experiences.