If these mysterious creatures can survive in Space then maybe they came from space, according to this video from Vice. Tardigrades look like a George Lucas-depiction of a caterpillar. Researchers don't know how they evolved and how they're able to withstand extreme heat, extreme cold, ultraviolet radiation, solar radiation, x-ray radiation, and the other intense conditions of Space. The fact that they're able to survive in off of Earth is suspicious indeed.