Human

Humans are one of the youngest extrastellar species in the Milky Way Galaxy.

Physiology
Humans have fairly robust physiology. Their internal makeup and reproductive processes are typical of most bipedal mammals, and their size and proportions give the appearance of being strong, fast and agile.

Humans can live to about 100 years of age, and recent medical advances have eradicated almost all known diseases that afflict them. However, as humans only emerged on the galactic stage within the last thirty years, it is highly likely that the introduction of new technology into their society will greatly increase their average lifespan. Humans reach physical maturity at approximately eighteen years of age, at which point they have usually finished their academic education and either directly enter the workforce or begin training for a profession

It has been noted that humans are unusual in the galactic community because they have far greater genetic diversity compared to other species with more peaks and valleys. This makes human genetic material useful in biological experiments, as a control group.

Despite the substantial genetic diversity of humans, certain physical traits have been becoming rarer ever since the 19th and 20th centuries, when the mixing of different Earth ethnicities, due to social progression and acceptance, became more commonplace. To this end, with the merging of genetics, certain traits have declined in frequency.

Psychology
Humans are generally seen to be very intelligent, abnormally ambitious, highly adaptable, individualistic and thus, unpredictable. They have a powerful desire to advance and improve themselves and do so with such assertion that many other galactic races have been taken aback by their restlessness and relentless curiosity.

Diet
Humans are omnivorous, capable of consuming a wide variety of plant and animal material. Varying with available food sources in regions of habitation, and also varying with cultural and religious norms, human groups have adopted a range of diets, from purely vegetarian to primarily carnivorous. In some cases, dietary restrictions in humans can lead to deficiency diseases; however, stable human groups have adapted to many dietary patterns through both genetic specialization and cultural conventions to use nutritionally balanced food sources