Communities

Writing
Writing
Codidact Meta
Codidact Meta
The Great Outdoors
The Great Outdoors
Photography & Video
Photography & Video
Scientific Speculation
Scientific Speculation
Cooking
Cooking
Electrical Engineering
Electrical Engineering
Judaism
Judaism
Languages & Linguistics
Languages & Linguistics
Software Development
Software Development
Mathematics
Mathematics
Christianity
Christianity
Code Golf
Code Golf
Music
Music
Physics
Physics
Linux Systems
Linux Systems
Power Users
Power Users
Tabletop RPGs
Tabletop RPGs
Community Proposals
Community Proposals
tag:snake search within a tag
answers:0 unanswered questions
user:xxxx search by author id
score:0.5 posts with 0.5+ score
"snake oil" exact phrase
votes:4 posts with 4+ votes
created:<1w created < 1 week ago
post_type:xxxx type of post
Search help
Notifications
Mark all as read See all your notifications »
Q&A

The feasibility of Grey Aliens?

+0
−0

I want to write a science-based story which includes grey aliens.

To clarify, grey aliens are seen to be either shorter or taller than the average humans, and sport a bulbous like head. their head has two big black eyes and have two smaller holes that are the nostrils. Lastly, the body of the aliens seem to be fairly slender, and has the common color of grey

what environmental requirements would be needed to lead to the rise of grey aliens?

History
Why does this post require moderator attention?
You might want to add some details to your flag.
Why should this post be closed?

This post was sourced from https://worldbuilding.stackexchange.com/q/167902. It is licensed under CC BY-SA 4.0.

0 comment threads

0 answers

Sign up to answer this question »