To'ul'human modification options

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| Two modified To'ul'hs; a to'ul'h capable of thriving in an Earth-like environment, and a humanoid To'ul'human |
The xenosophont species known as To'ul'hs have become widely integrated into Terragen society, and have established several colony worlds within the Terragen Sphere. However their environment is radically different to the environment favoured by most Terragen Species, especially nearbaseline humans, so a number of different options are available for social interactions and other forms of face-to-face meeting. Visiting a Tohulian Environment
On Tohul or any other tohulian world or habitat, Terragen-derived sophonts can wear envirosuits capable of protecting them from the hot, dense To'ul'hian atmosphere. Because to'ul'hs are a flying species, these terragen guests are usually equipped with wingpacks or some other method of aerial locomotion. Alternately the terragen guests can undergo radical bioengineering to adjust their bodies to the tohulian environment; some guests opt for radical morphological adjustment, so that they resemble a to'ul'h on a biological level, while others adopt more fanciful flying forms.
Visiting an Earthlike Environment
To'ul'hs who wish to visit an Earthlike planet, megastructure or other habitat, have a similar range of options. A popular option is a form-fitting envirosuit that keeps them at a comfortable temperature; because the atmosphere in an Earthlike environment is too thin to allow them to perform unaided flight, the to'ul'hs concerned can use specially designed flying aids such as fancloth wing extensions.
Another option is for the To'ul'h to choose comprehensive bioengineering, to adapt their form to thrive in an Earth-like environment. Even though a to'ul'h who has chosen to adapt to such an environment can walk around freely, they cannot fly in Earth-standard gravity, so they will still need flying aids. For this reason many locations which accommodate a significant number of Earth-adapted to'ul'hs are configured to have low gravity or microgravity; most to'ul'hs can adapt quite readily to zero gee.
A further option which is becoming increasingly popular among visiting to'ul'hs is to adopt a terragen morphotype. Humanoid forms are particularly common, often with some distinguishing features such as long, bat-like ears or vestigial wings. Some to'ul'hs prefer to adopt forms resembling provolved Terragen species, or even entirely fantastical forms from Earth or Tohul mythology.
In order to visit and commune with the various other xenosophont species that are in contact with the Terragen civilisation, to'ul'hs have a similar range of options. Visiting the Muuh, for example, involves sophisticated envirosuit protection or radical morphological reconfiguration - generally including changes to their internal bodyclock and perception of time.
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| A To'ul'h with a modified body adapted to thrive in an Earth-like environment, and a to'ul'h in human form, visit a Terragen Space Museum displaying a range of Sundering Era spacecraft |

- Envirosuit
- Homorph - Text by M. Alan Kazlev
Any non-human, such as a transhuman, posthuman, vec or alien, using an artificial humanoid body.
- Homorph, Alien - Text by Steve Bowers
Xenosophonts who deliberately adopt human (or general terragen hominid) form, morphology, or biochemistry. While homomorphism is fairly popular among some alien races and clades, many alien societies are under embargo to avoid cross-cultural pollution, so the homorph is often illegal. See also Toulhuman.
- Morphological Freedom
- Morphology - Text by M. Alan Kazlev
The shape of something, especially the organic form of a living being. Also, the study of how morphology is regulated in complex systems such as developing tissues or nanosystems.
- Morphotype
- Wingpack
- Xenomorph - Text by Steve Bowers
Any Terragen entity using an artificial alien (xenosophont) body for the purposes of cultural contact, exploration or colonisation.