List of fictional extraterrestrials

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This is a list of extraterrestrial species by type that have appeared in various works of fiction featuring aliens.

Contents

[edit] Alphabetical lists

See subarticles:

[edit] Humanoids

Most aliens are humanoid if not human-like or part human, especially in live action TV series, because the actors are human and only require make-up or masks to appear alien. The Greys described in UFO folklore match this body type.

[edit] Non-hominans

[edit] Demihumans

[edit] Human-like aliens

[edit] Near-relatives, ancestors or descendants of humans

In these stories, these aliens are descended from the same ancestors as humanity, or are themselves ancestors. Some are descended directly from humanity:

[edit] Mammalians

[edit] Canines

[edit] Felines

Often portrayed as a "warrior race" due to their ferocious nature.

[edit] Simians

[edit] Rodents

[edit] Ursines

[edit] Ungulates

[edit] Others

[edit] Avians

See also Avian humanoid.

[edit] Arthropods

See also Insectoid.

[edit] Centaurs

[edit] Reptilians and amphibians

Another popular form. See also Reptilian humanoid and Amphibian humanoid.

[edit] Aquatic aliens

[edit] Parasites and symbiotes

[edit] Robotic and mechanical aliens

Aliens that are created through technological means. This category also includes lifeforms that have been altered so that their existence depends on implants and other technologies.

[edit] Cyborgs

See also Cyborg.

[edit] Pure machines

[edit] Space-living creatures

These fictional creatures purport to thrive in the biome of outer space.

[edit] Sentient plants & fungi

[edit] Ancient/Primordial races

Aliens that have either disappeared and left only ruins or developed to godlike, practically omnipotent entities.

[edit] Extremely exotic forms

[edit] Amorphous/Gaseous creatures

See also Amorphous creature.

[edit] Energy beings

See also Energy being.

[edit] Telepaths, spirits and incorporeal aliens

[edit] Grotesque vertebrates

[edit] Microscopic aliens

[edit] Invertebrates

[edit] Inorganic lifes

[edit] Living planets

See also List of fictional living planets.

[edit] Shape-shifting aliens

[edit] Non-Sapient creatures

These fictional extraterrestrials display no signs of sapience.

[edit] Aliens from other dimensions

[edit] Generalizations

[edit] Galactic communities

Interstellar governments or communities in which several alien civilizations interact.

[edit] See also

[edit] References
Amphibia & Reptilia
Mammalia
Other mammals
Other
Other animals
Non-animals
General
Robots
Space
Extraterrestrial
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