Hymid

The Hymid are bipedal amphibians with webbed fingers and toes, and long tails ending in crescent-shaped fins. They have long ears, smooth blue/green skin with white bellies, and raptor-like legs.

They are naturally blue-coloured, and come in various shades of blue (including very pale ones that border on being white, and dark ones nearing black). However, they can all change their skin to a green colour at will: they can go into a state of hibernation where their skin turns green and start a process of photosynthesis. It's useful for when food supplies are low and there's no danger nearby: they can simply lay down in the sun and absorb the light to fuel their hibernation for months.

They can also change their skin colour at will without going into hibernation, but that takes effort and isn't something they usually do. It still slows down their bodily processes, and it makes them feel sluggish and weird, so they don't do so often. It's a natural ability that's found commonly in a lot of wildlife of their home planet.

Hymidian Republic of Hyzolia is an assembly.

Culture
The Hymid had very minor connections to the Centens too - only having access to a few small ruins and barely any relics - but were discovered when a group of Aegi left Elithia in an attempt to find more habitable worlds. They stumbled upon the Hymidian homeplanet, and uplifted their society into the space age.

Their culture is an odd mix of Hymidian traditions and Aeginian culture. There were Centensian ruins on their homeplanet that were originally seen as proof of gods living on Hyzolia, but they were later uplifted by the Aegi and have copied countless Aeginian traditions and laws since. The belief that the Centens were gods has faded, though it's not entirely gone from their society yet. They are the closest ally of the Aegi and cooperate with the Union in many things. They almost always vote for the same things the Union does, and they have no military of their own: instead, the Hymidian military is a joint Aegini-Hymid venture called the UFAH: the United Forces of the Aegi and Hymid.

The Aegi obviously have weddings, and the Hymid have adopted the practice as well, although their ceremonies will be different from those of the Aegi. Before they were uplifted by the Aegi, the Hymid did have partners for life, but no ceremonies or anything - they imitated the Aegi in that regard, like they do in many things.

The Hymidian Republic of Hyzolia has access to essentially the same tech as the Aegi and the rest of the Alliance - technological knowledge is one of the many things often shared in the Alliance - so the Hymid don't appear all that less advanced at first. On their own, however, they're probably the least advanced race right now.

The Hymid have a rich mythology.

The Hymid have daily activities very similar to the Aegi, but with a greater focus on diving, underwater sports and such.

Technology
The Hymid tend to follow the Aegi's example, and had hardly any technology before they were uplifted by the Aegi. As such, they never got to develop their technology completely free of Aeginian influence, and while the tech they build is definitely unique to them, the fields they researched were largely governed by the Aeginian influences on their culture. So like the Aegi, they would never go very far with the genetic engineering and prosthetics tech, but for somewhat different reasons.

Theledos is a Hymidian weapons manufacturer. There's at least two more Hymidian weapons manufacturers - Hyvantas and Lahmeda - but those don't have any in-game content yet. Theledos has no association with the Theleans, the naming similarities are purely coincidental.

The Hymid were indirectly influenced by the Centens, too: they haven't had any encounters with the Centens (nor any of their AIs), but there are Centensian ruins and relics on the Hymidian home planet that influenced their society somewhat.

Architecture
Most Hymidian citites on the surface are permanently flooded with a small layer of water, allowing the Hymid (who are amphibian) to stay wet while also allowing the Aegi to easily traverse their cities. Fish and other animals are often found swimming through the streets there.

They generally used two styles: the older underwater structures were somewhat based on old greco-roman architecture, featuring a plethora of columns and decorated walls, while their more modern land-based architecture heavily featured hexagonal shapes with plenty of tall, interlinked hexagonal towers. It could be some combination of the two.

Education
In the Hymidian Republic of Hyzolia, classes have a majority of Hymid in them, but there's countless Aegi living amongst them and so almost every class features both Hymid and Aegi. Other species aren't as common on Hyzolia, but the schools ensure that children learn about and meet other species too. That can be through exchanges and excursions, but there's also alien teachers and other professionals who can make an appearance.

Aegi
Aegi settled on their homeworld and shared their technology and knowledge with the native Hymid, and the Hymid quickly became close allies. Nowadays, the Hymid don't even have their own military force - instead, they have the UFAH: the United Forces of the Aegi and Hymid.

They follow the Aegi in almost all things.

The Alliance managed to secure a friendly relationship with the Hymid very early on. The Hymid are loyal members of the Alliance. Hyzolia also has a large Union presence, and is home to a few individual states as well.

Same-sex marriage is nothing unusual in the Union: it's fully accepted by society, though there'll always be some small percentage of the population that resists the idea. The same goes for inter-species marriage: it's (almost) fully accepted and perfectly legal. Aegi-Hymid pairs are especially common as far as inter-species marriages go.

Centens
They worship the Centens, (much like the Avikan do, though they don't have a single Centensian deity) even though they had barely any understanding of who or what they were.

The Centens are worshipped due to the presence of Centensian ruins (and artefacts) on their planet, which the Hymid sometimes used during their tribal development, but it was the Aegi who truly uplifted them.

After their uplifting by the Aegi the Centens-focused religion has drastically decreased in popularity, but it's certainly still a factor in their society.

Trivia

 * "Hymid and Dremeton both evolved from original Spore creations I made (the Hymid were actually my first ever Spore creation)" --Aegonian
 * Hyzolia is a garden world, much like Elithia and Earth, though it's even more abundant in water and features fewer arid areas.
 * Hyzolia (the home world of the Hymid) is very comparable to Elithia and Earth, with some pretty dangerous predators but nothing too incredible.
 * The Zora from "Legend of Zelda" were a minor source of inspiration for the species, but not the main one. They were Aegonian's first Spore creation, where they were the most developed species of his.
 * Lanayra is a very small moon of Hyzolia, not large enough to become rounded like the moons of Earth and Elithia. There's not much to be said about the moon, as it's too small to colonize and it offers barely any resources to be mined.
 * Hyliontes and Mazilfos are planets in the Hyzilfos system, the home system of the Hymid. Hyliontes is a hot, barren planet with some volcanic activity, and is the closest to the star Hyzilfos. Mazilfos is the furthest from the star, and is a frozen wasteland rich in ice but devoid of life.
 * Hyliontes has some mining outposts, but no permanent colonies, and most of the mining is done by machines. The planet is simply too hot to survive for long, even with advanced equipment. Aliens would need to be incredibly hardy to settle there. If some unknown species tried to settle the planet, the Hymidian Republic of Hyzolia (and the Alliance by extension) would not be happy, and they might take military action if the planet is settled without warning. It's part of Hymidian territory, and so the Alliance will protect it from foreign invasions. Through diplomacy, aliens may be able to set up some outposts there, but it might be hard to truly settle the planet.
 * The race is considered underdeveloped by it's creator Aegonian. It'll be subject to more development.