This "living metal" was described as having a cellular structure in the Victory cartoon, a fact independently reiterated by the the Marvel Generation 2 comic books, which also established that Transformers possessed "genetic material" (useful when "budding").It was the Marvel comic which first introduced the idea that the Transformers originally emerged from the very fabric of the planet Cybertron itself, an idea that has become the dominant "origin" story for the species in modern media, and the means by which new Transfomers come into being even in the present day.
The Transformers are a species of sentient, living robotic beings (mostly) originating from the distant machine world of Cybertron.
The stories of their lives, their histories, and most especially their wars have been chronicled across many different continuities in the vast multiverse.
While many Transformers possess a "humanoid" form with two arms, two legs and a head atop their torso, it is not uncommon at all for there to be extensive variations.
Some Transformers do not have a "humanoid" mode at all, rather their "primary" form is that of an animal or vehicle.
In almost all cases female Transformers are portrayed as more graceful of form and more rounded and curved in general, often with a more than passing resemblance to an attractive metal human female wearing armor and kibble.
There are rare exceptions to this rule (notably Strika, Strongarm, and Discharge, though the latter is said to be wearing armor that obscures her true appearance).
Although "Transformer" is the most common term for these beings, there are others, mainly "Cybertron" as a reference to any being whose origin traces back to the planet in question (the adjective form being the more frequently used "Cybertronian" and occasionally "Cybertronic").
They were the dream--mechanical beings able to transform their bodies into vehicles, machinery and weapons; a last line of defense against the chaos bringer, Unicron!
They are at war, heroic Autobot pitted against evil Decepticon, both on their homeworld, the metal planet called Cybertron, and here on our Earth.
They are the galaxy's last hope, they are-- TRANSFORMERS The origin of the Transformers species differs according to continuity, and not all continuities have given the race a specific stated origin at all, but, of those that exist, the most prominent are: Also perhaps worthy of mention is the process of biomechanical evolution, the process by which the Transformers' sister race the Go Bots came to be, transitioning from organic beings to mechanical by upgrading and replacing their forms over time.
(A version of this technology had been introduced earlier with Pretender Transformers, though in that instance the synthetic flesh was a removable outer "shell".) In the era of Beast Machines, events led to true organics being infused into Transformers biology down to the cellular level, making them "technorganic" with an increased range of powers resulting.