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List of aliens in fiction by type
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List of aliens in fiction by type

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

Table of contents
1 Humanoid Aliens
2 Near-relatives of mankind
3 Feline humanoids
4 Canine humanoids
5 Insectoid and Arachnid Aliens
6 Centaurs
7 Reptilians and Amphibians
8 Aquatic species
9 Parasites and symbionts
10 Robotic and Mechanical aliens
11 Space-Living Creatures
12 Sentient Plants & Fungi
13 Ancient Races
14 More unusual forms
15 Shape-shifting aliens
16 Unintelligent Creatures
17 Aliens From Other Dimensions
18 Galactic communities
19 See also
20 References

Humanoid Aliens

Most aliens are humanoid if not human-like, especially in TV series because actors are human. The Greys described in UFO folklore match this body type. Humanoids include:

Near-relatives of mankind

In these stories, these aliens are descended from the same ancestors as humanity:

Feline humanoids

This form has been popular. They are usually warrior-like as well:

Canine humanoids

Insectoid and Arachnid Aliens


Reptilians and Amphibians

Aquatic species

Parasites and symbionts

Robotic and Mechanical aliens

Space-Living Creatures

Sentient Plants & Fungi

Ancient Races

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

More unusual forms

Shape-shifting aliens

Unintelligent Creatures

Aliens From Other Dimensions

Galactic communities

See also