Belief in extraterrestrial life exists on a spectrum, ranging from the belief that aliens are already present on Earth to various depictions such as reptilians.

Authors

• Person: Not available Organization: PBS
  Alien Abduction and UFOs: Why Are Grays So Common? | Season 4

Sources

• Alien Abduction and UFOs: Why Are Grays So Common? | Season 4 www.pbs.org PBS via serper

Referenced by nodes (2)

• extraterrestrial life concept
• Reptilians concept