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People compare how aliens would reconstruct animals based on their skulls vs. what they really look like (28 pics)
About 500 million years ago, not a single creature had a skull. Over time, these bony plates evolved into the structural marvels that vertebrates—animals with spinal cords, aka you, me, and your pug, ...
Some insects look more like aliens than they do insects. One example is a grasshopper that is able to survive by not looking ...
Introduction -- Form vs function : what is common across worlds? -- What are animals and what are aliens? -- Movement - scuttling and gliding across space -- Communication channels -- Intelligence ...
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