#andorian

I fear this needed its own post. Three punks and plain, simple Garak (me).

Andorians/Aenar:

Temperatures run very high due to some chemical heat production in their blood to keep them warm on Andoria

An aspect of their language is a range of insectoid chittering sounds that indicates tone and is a subtle mood indicator (and is not typically audible to humans, though some other species are able to hear it)

Dense protective layer of chitin under the skin that adds a deceptive degree of weight to their frame

Andorian vision being far more sensitive to motion and contrast, but not having very good vision in general and having difficulty processing "warmer" colors visually due to them rarely occurring within their environment evolutionarily

Bajorans:

Respiratory system has regions where it is compressed to filter out debris from the environment (the nose ridges are the most obvious, being external)

Nails are thicker, evolved for digging

Teeth further back in the mouth are dual rowed to crush thick roots

A small coat of short downy hair often coats the torso and limbs as a protective barrier against sand, insects, and certain plants

Betazoids:

Skin is thinner than humans

Joints are weaker due to evolving to live in a lower gravity highly aquatic environment

Blindness, deafness, muteness, or combinations therein are not uncommon due to the evolution of telepathic communication mean that they cause little to no evolutionary issues

When under water they are able to see clearly due to the unique secretions of their eyes and their ears and nostrils shut reflexively.

Cardassians:

Hair is more akin to feathering or quills in texture and evolved to protect sensitive sensory ridges on their scalps

Talons and dewclaws on their feet

Shed their scales every few months (very Inconvenient)

Vestigial venom glands that now serve a predominantly immune system role

Put some of my friends head-canons about Andorians on the bug