Alien puppeteers arriving on UFOs, body snatchers, and mimics are a staple of science fiction, but are they realistic? Today we'll examine these concepts and see if they might be possible under known science, or what similar scenarios extraterrestrial evolution or technology might be produce.

Watch the video version: https://youtu.be/84EiBakZ_Vg

Use my link http://www.audible.com/isaac or text "ISAAC" to 500-500 to get a free book including a copy of "Who Goes There?" and a 30-day free trial of Audible.

Visit our Website: http://www.isaacarthur.net

Support us on Patreon: https://www.patreon.com/IsaacArthur

SFIA Merchandise available: http://signil.com/sfia

Social Media:

Facebook Group: https://www.facebook.com/groups/1583992725237264/

Reddit: https://www.reddit.com/r/IsaacArthur/

Twitter: https://twitter.com/Isaac_A_Arthur on Twitter and RT our future content.

SFIA Discord Server: https://discord.gg/v5UKTsz

Listen or Download the audio of this episode from Soundcloud: Episode's Audio-only version:

https://soundcloud.com/isaac-arthur-148927746/parasitic-aliens

Episode's Narration-only version: https://soundcloud.com/isaac-arthur-148927746/parasitic-aliens-narration-only

Credits:

Alien Civilizations:

Parasitic Aliens

Episode 149, Season 4 E35

Writers:

Isaac Arthur

Editors:

A.T. Long

Edward Nardella

Evan Schultheis

Jerry Guern

Keith Blockus

Mark Warburton

Matthew Acker

Sigmund Kopperud

Stuart Graham beyondnerva.wordpress.com

Producer:

Isaac Arthur

Cover Artist:

Jakub Grygier https://www.artstation.com/jakub_grygier

Graphics Team:

Jarred Eagley

Jeremy Jozwik https://www.artstation.com/zeuxis_of_losdiajana

Ken York https://www.facebook.com/YDVisual/

LegionTech Studios https://hades9.com

Narrator:

Isaac Arthur

Music Manager:

Luca DeRosa - [email protected]

Music:

Martin Rezny, "Lifelight" https://soundcloud.com/martin-re-n-1

Markus Junnikkala, "A Memory of Earth" https://www.markusjunnikkala.com/

Lombus, "Hydrogen Sonata" https://lombus.bandcamp.com

AJ Prasad, "Staring Through" https://www.youtube.com/watch?v=xA8-7qwaEPU

Sergey Cheremisinov, "Labyrinth" https://www.s-cheremisinov.com

Lombus, "Time Slip" https://lombus.bandcamp.com