Discover Top Posts Tagged with #gills

Warning : detailed gills, maybe?

Vox Week 2026 - Day 1 : Wireplay

#voxweek2026 #radiostatic #hazbin hotel #alastor x vox #Wireplay #no cocks for tumblr 🐔#moth’s own art tag #also:#GILLS

Many people think fish breathe the oxygen inside the water molecule H2O, but that oxygen is bonded to hydrogen and fish do not break it apart. Instead, fish breathe oxygen gas O2 that dissolves into water from the air, then their gills pull that dissolved O2 into the body, kind of like how CO2 dissolves into soda to make it fizzy.

#fish #gills #oxygen #chemistry #water #biology #science #respiration

mersoundwave asdfg-

his alt mode has legs

#maccadam #merformers #fish #feesh #transformers #soundwave #furry #fish art #fishies #catfish #whale shark #gills #fins #au #soundwave au #g1 soundwave #g1 transformers #ravage #cat fish

GILL KARKAT HC MY BELOVED (design by @artful-browniebites)

#Homestuck #Karkat #gills #gill #mutant

Hi!! Okay so I have a merfolk/fishfolk question. Any time I’m drawing a character with gills, I’m always indecisive on where to actually PUT the gills. I usually go with putting them on the neck, since fish gills are usually behind their head, but like. Would there be benefits/would it make for sense for them to be on the sides, or tail, or even the face in a humanoid body plan??

No worries if you don’t have an answer, love the blog!! Hope you have a nice day :)

on the neck is visually easier in a lot of ways, it puts the gills front and center in a place that's usually not blocked by anything.

however.

a fish can have its gills up by its head like that because they don't have any major separation between the head and body, so there's a lot of space to put the gills (also did u know a fish skull is also kind of its pelvis at the same time? fish anatomy is so weird) gills need good surface area to bring oxygen out of the water.

and since the humanoid torso shape has lungs in the ribcage, I think it makes sense to put the gills right about where the humanoid ribs would end, and that way they'd have a lot of surface area to work with, even if the arms might get in the way a bit. but as long as the arms aren't, like, tightly pressed against the gills, they should be fine. and if your merfolk are capable of breathing in the air as well as underwater, having the gills and lungs close together seems somewhat reasonable.

I sketched up some merfolk for a friend a while back, so here's a visual for what I'm talking about: (the friend was asking about merfolk genitalia, so that's why their lower orifices are. a bit more obvious than usual. but I don't think tumblr will flag it)

(image description: sketches of two merfolk, one more fish like and the other more like a shark. they both have their gills on the chest, about the same location as human ribs, but the shark has three gill slits while the other fish has one gill slit. end description)

#merfolk #gills