From the Greys to the Nordics, these aliens appear frequently across abduction stories and science fiction tales.

According to intelligence reports, each alien species has a humanoid appearance with two arms and legs, Davis claimed. Nordics and Reptilians are human-sized at roughly six feet tall, Davis said at an ...

Science fiction stories about “alien” invaders are often political allegories for anxieties around immigration. Now, a government website depicts non-citizens as extraterrestrials.