Hey there! I'm a Back to the Future enthusiast that surprisingly doesn't write any stories for that genre! :P

Here's the bio for a Liminal Species(think Centaur or Mermaid) that I came up with! It's (almost)all-original, and I spent quite a bit of time on it!

Species Name: Croctus.

Scientific Name: Reptilius Aligatorino.

Plural: Croctus.

History: Croctus are believed to have first appeared around 600 B.C., first spotted in swamplands and rain forests. They began as a rather isolated race, tending to walking on four legs and simply defending their territory from other species and living their lives. They have been capable of human speech since the beginning of the Croctus race. Around 20 A.D., a virus similar to the Bird Flu wiped out almost all of the Croctus, forcing the females to intermarry to prevent extinction. The Croctus chose to intermarry with humans, since humans were the only species so far that helped the Croctus during troublesome times. Since then the Croctus have become much more sophisticated, building villages and providing trade routes through the swamplands and forests that they call home.

Appearance, Pre-Intermarriage: The Croctus looked much more like crocodiles than humans, the only differences being that the Croctus not only had opposable thumbs, but their jaws were bendable, allowing for human speech and the pronunciation of letters like P, B, G, etc. They also had more control over the face, allowing for snarling, smiling, and other key expressions. At this point, the only real difference between males and females was size, with the males several feet longer than the females.

Appearance, Post-Intermarriage: After intermarrying, not only did the Croctus become more bipedal, but their entire anatomy became more human-like. Their fingers became longer and less-webbed, allowing for more delicate work. Their jaws became slightly shorter, making it easier to speak.

The biggest change was the new differences between the males and females. Males now were much more muscular, able to lift a pickup truck over their heads. On the other hand, they became slower both on land and in the water. In terms of height, a full grown male generally stands at 6'8" to 7' tall.

The females became more slender and acquired breasts, but remain mostly in the B-cup to C-cup range since their bodies became built more for speed and agility, shedding several pounds of muscle. The females skin is much softer and less leathery than the males, and since this was the Croctus' main protection, the males do all the hunting and fighting. A full grown female generally stands at about 5'9" to 6' tall.

Movement: As mentioned before, before the intermarrying the Croctus preferred to walk on all four legs. They could rear back onto their hind legs and walk like a human, but their bodies weren't made for that kind of travel. Staying in that position for prolonged periods of time would normally lead to hip pain, and sometimes spinal damage. However, intermarrying fixed this problem, allowing for the Croctus to walk more like humans. In the water Croctus are one of the most dangerous predators. The males are able to swim up to a maximum of 30mph while the females, being much more slender and agile, can reach speeds of up to 45mph. On land, Croctus are much slower. The males can run at about 10-15mph, while the females can run at 20-25mph.

Fashion: Next to Dryads, Slimes, and other similar Liminals, Croctus are one of the least picky Liminals when it comes to clothing. However, they do have a sense of decency, and will typically wear clothing just where they need to.

Diet: Similar to their sense of fashion, Croctus are one of, if not the, least picky eaters of all Liminals. They have a special metabolism that allows them to digest things that most other species can't. These include poisonous plants, bones, and almost anything else that isn't too sharp, too big, or too hard to swallow. Because their teeth are made for tearing and not chewing, Croctus swallow almost everything whole.

Childhood: Croctus give birth much like regular crocodiles, but in much lesser abundance, generally having only 4-5 children per family. The baby Croctus' genders are decided, like regular crocodiles, by the temperature of the eggs while they incubate. After the babies hatch, they remain under the very protective care of the mother for about 3 years. By that point, the children are big enough to wander about the wilderness, but not without their mother. As infants, Croctus children chew on everything. This is how they get to know their surroundings and learn what is meant for easting and what isn't. Because of this, it is not uncommon for any and all of the furniture legs in a Croctus household to be covered in teeth marks.

Speech: People think that the Croctus are a rather dimwitted species, but in reality they are quite lingual, most knowing at least two languages at once. Also, despite being large, Croctus sound like regular humans.(No drawls, no lisps, just regular speech.)

Notable Croctus: Killer Croc: This Croctus is a somewhat well-known villain of the Batman franchise. He's a special kind of Croctus with an even shorter jaw, and a much more human appearance, due to coming from a human family.

King K. Rool: This rather overweight Croctus is the main villain of the Donkey Kong series. He is more croc than human, indicated by his longer jaw. However, he doesn't have webbed fingers, like Croctus normally do. He rules over a clan of Croctus called the Kremlings, which are basically your average male Croctus. Some of his aliases are: King Kremling Rool; King Krocodile; Fat Tub of Lard.

Leatherhead: This Croctus, from the TMNT series, is extra special in the sense that he came to be by the mutation of a regular crocodile. Otherwise, he is just an average male Croctus.

And here's a bio for another Liminal: The Chameaonide!

Species Name: Chameaonide. (Ka-may-oh-nide)

Scientific Name: Chemilino Colourus

Plural: Chameaonea. (Ka-may-oh-nay)

Genders: 100% Female, 0% Male. (Like Lamias and Harpies.)

History: The Chameaonide species was first discovered and recorded deep in a Madagascar rainforest sometime in the 12th century A.D., but the Chameaonea themselves have confirmed that they have been around much much longer. When they were discovered by humans, they were very cooperative and agreeable, and presented no threat to humans whatsoever, aside from having kidnapped men in the past in order to reproduce.

Appearance: From a distance, a Chameaonide can be easily mistaken for a normal human female. They have slender bodies to make climbing easier, and are rarely ever very strong. Upon closer inspection, a Chameaonide bears several differences that distinguishes the species from the human race. One of these differences is the possible inclusion of horns protruding from the head of the Chameaonide. The number of horns can range from two horns to no horns at all.

The eyes of a Chameaonide are unique in that, like a chameleon’s eyes, they can focus on two things at once, at varying distances and locations. Unlike chameleons, Chameaonea eyes are positioned like human eyes, so they do not get a full 360 degree view of their surroundings.

A Chameaonide’s hand are extra special because they have twice the amount of joints in each finger, allowing them to grip ropes and branches much better as they climb around their leafy homes. The feet of a Chameaonide are the most stand-out thing about them(aside from the tail). This is because their feet are shaped exactly like a real chameleon’s feet, straight down to the claws and the way they can grip almost like hands.

The last difference is the Chameaonea’s prehensile tail. Like a real Chameleon, Chameaonea use their tails mostly for balance while climbing and walking along thin surfaces, but they can also hang from it for short periods. This, combined with the Chameaonide’s special hands and feet, make this species one of the best climbers in the extra-species world. Also, like a lizard, they can detach their tails if absolutely necessary. No one, not even the Chameaonea, knows why they are able to do this. Some suspect that they may have intermarried with Lizardmen at one point, but no one can fully prove this.

Movement: Chameaonea can walk both on two legs, and on all four appendages, depending on the situation. While on the ground or some other solid surface, Chameaonea prefer to walk on two legs. While climbing or on an unstable surface, Chameaonea prefer four legs. The legs of a Chameaonide can bend both forwards and backwards, allowing for a more comfortable position while climbing.

Special Abilities: Besides their unique appearances, Chameaonea are known for their ability to change color on command. They can change the color of any parts of their bodies, from their hair to their skin to their irises. However, even though they can control their coloration, they’ll sometimes change color involuntarily depending on their mood. This mood ring-like feature of theirs varies in colors depending on the Chameaonide. (i.e. Some Chameaonea turn red to denote anger, while others turn green or blue or even yellow to denote the same emotion.) Chameaonea can also copy intricate patterns if they focus on the design.

Chameaonea also have long, sticky tongues that they can use to latch onto small prey from a distance. However, their tongues are otherwise useless for anything other than this purpose(and for pleasuring their husbands) due to its size. They can, however, control their tongues much better than regular chameleons, and some that have practiced can even make shapes with their tongue.

Habitat: Chameaonea were originally thought to live only in the rainforests of Madagascar, but the species has been found in Northern Africa and Southern Europe.

Unlike most chameleons, Chameaonea tend to live high up in the trees rather than on the ground. The villages that they build in the trees are as close to the forest ceilings as they can get them without the trees becoming too flimsy. In some of the forests of Madagascar, you can see the tops of some villages from an airplane. Their houses are built in a different tree for each house, and their walkways(if you can call them that) consist simply of ropes and/or branches, and can only be traversed by the Chameaonea. The walkway are much too flimsy for predators like leopards or Arachne to walk on, so their villages are protected pretty well.

Fashion: Since being integrated into human society, the Chameaonea having taken to the styles of humans and indulged in alal the different clothing trends. Before integrating, Chameaonea wore clothing woven from leaves, spider and Arachne silk, and sometimes even strips of bark. The Chameaonea are a very modest species and prefer not to be seen naked by anyone other than their husbands. The only exceptions to this are the mothers seeing their daughters naked.

Diet: Chameaonea are omnivores, and eat mostly mostly the plants and creatures that live in the forests around them. They know how to cook somewhat, but they use odd things to accent and flavor their dishes. These “odd things” can range from crushed bugs to lizard scales to smaller animal feces. Essentially, a Chameaonide’s food is enjoyed specifically by other Chameaonea and itself.