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

Can land-living endotherms exist without hair, feathers, scales etc.?

+0
−0

Aliens are very rarely portrayed as being furry, at least in proper xenobiology worldbuilding. They're virtually never depicted with feathers, and only sometimes with scales.

Currently, there are three known integument structures which endothermic animals are known to use or have used; hair (in mammals and some other therapsids), feathers (in dinosaurs) and pycnofibers (in various archosaurs). Cicadas are also endothermic, and they insulate themselves with setae, but I guess that falls under the hair category. Scaly dinosaurs are thought to have used scales to trap heat, but that's not exactly confirmed.

There are endothermic animals which have no hair, feathers or any kind of filamentous integument - such as cetaceans, tuna, and mosasaurs, but they're all aquatic, and since heat works slightly differently in water, I'm going to leave that aside for now. Moving onto hypothetical forms of thermoregulation, I could see three-layered exoskeletons (refrigerated by tracheae), skin folds, air-filled shells, and radiators such as dewlaps working, but, here is my rather difficult question;

Could a land animal with naked skin keep warm and cool down by its own means without radiators? Perhaps insulation with fat and fat alone would work, but how would it cool down without skin folds or heat radiators? Would sweating work, or would it be too water-wasting?

Edit: For further clarification; fire, clothing, frequent bathing, and only inhabiting warm areas are also not allowed.

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/126436. It is licensed under CC BY-SA 4.0.

0 comment threads

0 answers

Sign up to answer this question »