

Examples of hard invertebrate sentient species included the Sauvax, the Aganof and the Tarc. While this classification also included insectoid species, they were grouped separately. These often included crustaceans and some flying creatures. Hard invertebrates had hard outer bodies with no internal skeleton. Common examples of this form of life were the Verpine, Fefze, Killik, Bartokk, Gand, and Geonosians. Some insectoid species evolved into different forms, such as humanoid insect species. Many had hard exoskeletons and wings, and could have any number of segmented legs. Insect sentient species were arthropods, with defined body segments most commonly head, thorax and abdomen. The Neti, Ergesh, Revwiens, Zelosians, and Sylphe are some examples of this form of life. They were usually immobile, although some species were able to move to seek better soil, light or nutrients. Plant sentient species synthesized energy from water, nutrients and sunlight. They also came in less humanoid forms, such as the Slith and Ssi-ruu. Reptilian sentient species were also very common in the galaxy, and notable examples included the Rodians, Barabels, Chistori, and Trandoshans.

Most reptiles were land based, and lay eggs to reproduce. They typically evolved from species such as lizards, snakes and crocodiles. Reptilian sentient species were cold-blooded vertebrates, typically covered in scales or bony plates. Other notable forms were Wookiees, Cereans, Bothans and Sullustans. Some of the most prominent species in the galaxy were mammals, such as the Humans and their numerous offshoots. Mammalian sentient species were warm-blooded vertebrates, who nourished young through secretions from mammary glands. Despite these differences, most species were easily classified into a number of distinct categories:

Across all species, the majority were oxygen breathers, although a number breathed other substances such as ammonia, cyanogen, methane, methanogen, helium and Dorin gas. Reports from remote parts of the galaxy even mentioned giant clouds of interstellar gas which had evolved a form of intelligence based on internal force-fields. However, other forms of sentient life did exist, such as silicon-based or energy-based lifeforms. The predominant form of sentient life in the galaxy was carbon-based lifeforms.

The five characteristics of lifeforms were organization (a distinct form and appearance), irritability (the ability to respond to external stimuli), metabolism (the ability to convert energy to stay alive), reproduction (the ability to create new lifeforms), and adaptation (the ability to change as their environments change). While some may be hyper-intelligent or skilled in battle, others may have a little less to offer the rest of the galaxy, perhaps being deemed weaker than most." There were green creatures with horns, brown creatures with flat-crooked heads, silver things with red things sticking out of blue things, big furry things, little furry things, creatures with big fish eyes, creatures with no eyes, and creatures with things that I couldn't even begin to describe." ― Grael describes a wealth of sentient species to Ponto Updated November 1st, 2021 by George Chrysostomou This fictional universe continues to expand on the page and screen and with it comes countless more alien Star Wars species. Also, all the species on this list are sentient- not creatures. The rankings are based on the average power of a typical individual of the species combined with the galactic achievements of that species’ society. This is by no means a complete ranking of every species that has ever played a major role in Star Wars media, but these are most of the species fans know. However, who are the weakest and the strongest? Who has stuck to their tiny corner and who has reshaped the galaxy as a whole? The definitive rankings may be a surprise. RELATED: 8 Best Retro Star Wars Games That Are Still Worth Playing Today A few have built entire civilizations in their own right and won the respect and or dread of the galaxy at large. Some of these Star Warsspecies have played bigger roles in the story than others. Now, with illustration and modern CGI, Star Wars storytellers can bring just about any creature to life. In the early days of Star Wars production, Lucasfilm had to come up with some clever ways of bringing these aliens to life. The Star Wars galaxy far, far away is home to numerous exciting species.
