Humans are a biological species of intelligent life that typically originate on the planet Earth, though there are exceptions. They also tend to be the dominant life form on the planet they occupy. Humans have historically played a significant role in the galaxy.
Biology and appearance
The appearance of humans have served as the namesake of “humanoids.” Humans on Earth evolved from primeval humanoids which suggests a common ancestor with the apes of the planet. The evolutionary history of humans on other planets like Nebulos is unknown. It should be noted that humans appear much more often in the Omniverse than other species like Transformers.
Humans naturally progress through a life cycle that lasts roughly only 100 years due to their biological limitations, and reaching that age alone is a rare feat. Humans progress from infants (roughly ages zero until two), children (roughly ages three to twelve), teenagers (roughly ages thirteen to nineteen) adults (roughly ages twenty to sixty) and elderly (roughly ages sixty onward.) However, humans in some universes have become technologically advanced to not only remain immortal but to also bring deceased members from their society back to life.
Humans typically reproduce sexually through the male and female genders. Following sexual reproduction, the female partner will become pregnant with a child and give birth. Infants typically rely on their parents for survival. This reliance remains at the child stage, though children will often be more adventurous and imaginative. During the teenage stage, humans have shown to become more rebellious against authority and develop a larger sense of independence.
As an adult, a human will usually be fully independent as their own individual and may seek to reproduce.An adult human's height can range to around five feet tall. As an elder, the bodily functions of a human will naturally begin to fail them and they will grow weaker. This serves as the slow winding down until their deaths.
A human may die in a variety of other unnatural deaths as well, being a weaker organism in the galaxy. Both their brain, stored in their head, or their heart, stored in their chest, are crucial to their survival and should one be destroyed, so too will the human's life. Biologically speaking, the human brain is used to think and control the human. This organ is often the target when the human becomes a victim of mind control or brainwashing. The heart pumps blood throughout the human's body. Blood is the liquid within the human body to transfer nutrients throughout the body. The human body is held together structurally by a network of bone which may be prone to breaking should a sever injury be sustained.
Other functions and organs of humans include a thin epidermal layer of skin, hair at various points of the human body, eyes to provide sight, a nose to provide humans with a basic sense of smell, ears to give humans basic hearing, and mouth which serves the purpose for communication as well as the consummation of food which a human needs to regularly ingest to survive. Humans have two arms and two legs, typically favoring their right side to their left.
This being said, many of these functions may fail a human, but this does not necessarily mean that they are failed beings. In many universes, humans have developed a way to aid themselves should a function fail or not work optimally. Glasses may be used to improved eyesight while inventions like wheelchairs may be used for humans who lack ambulatory abilities. In the case of non-vital body parts being separated from the body, mechanical prosthetics have proven to serve as an adequate replacement.
Gender-wise, humans can typically be divided into two biological genders: Male and female. However, there are instances where a human of one biological gender will instead identify with that of another gender. This state is referred to as transgender. In other universes, many humans develop beyond a binary gender system and do not identify with either gender.
Society and culture
Human society and culture varies across the galaxy and even across their own planets as humans tend to live in nation-states with their own distinct cultures. Universally speaking, humans tend to contribute to their societies in the form of employment with jobs, usually in return for monetary gain. In some occassions, the desire for monetary gain alone can result in humans participating in amoral or immoral acts.
In romance, humans typically partner with a one member of the opposite sex. However, same-sex romantic and sexual relationships are not unheard of. Romantic gestures such as romantic dates, kissing, hand holding, and cuddling have all been seen as traits of a human relationship. Humans also enter romantic relationships relatively frequently compared to other species in the galaxy. These relationships often end and usually the human will later enter another relationship in a form of serial monogamy.
Humans typically remain close to their families for the duration of their life and hold funeral ceremonies for their deceased. This includes the deceased that they were in a closer relationship with, including friends.
For the society and cultures for more specific groups of humans, see the following pages: