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Scientists Built an Artificial Skin That Changes Color and Texture Like an Octopus

Octopuses are the undisputed kings of camouflage. Whereas engineers have learned to mimic the colors, octopuses also match ...

15 most chilling UFO sightings ever recorded

If you're a skeptic, these UFO sightings will convince you that the truth is out there—and it may not be from Earth. Eerie ...