In Avatar, the Na'vi are an indigenous species that live on Pandora. They are humanoid in appearance and are 9 to 10 feet (2.7 to 3.0 m) tall, having pairs of eyes, ears, arms, legs and feet like humans, as well as a nose, a mouth, and expressions recognizable to humans.
The size of Na'vi varies by region and genetic history. The average male stands (2m70-3 meters) (9-10 feet) tall, females slightly smaller, and the maximum observed size is 3.9 meters (~12 feet, 10 inches).
The average height of a Na'vi is estimated to be around 10 feet (3 meters) tall, whereas humans are depicted as their normal average height of approximately 6 feet (1.83 meters). This height difference is one of the distinctive physical characteristics that sets the Na'vi apart from humans in the movie.
In Cameron's script she's introduced with the descriptor "in human age she would be 18," but that raises as many questions as it answers. As with the math that leads to Jake being 28, Neytiri's birth in the Earth calendar year 2136 and the film's setting in 2154 add up to make her 18, but that's by Earth standards.
Fun fact: despite only being 7 years old and the youngest kid of Jake and Neytiri, Tuk is actually 1.70 meters/5,7 feet tall. Meanwhile i'm about as tall as Spider as i'm 1.80 (5,9) and he's 1.83 (6,0) even though he's 16. Are you taller or shorter than Tuk and Spider?
Neteyam te Suli Tsyeyk'itan, or Neteyam, is a major character in the Avatar franchise, serving as one of the main characters in Avatar: The Way of Water. He is the 15-year-old eldest son of Jake Sully and Neytiri, who is also the older brother of Lo'ak, Tuktirey, and Kiri.
While it correctly lists his height at 8'2", it incorrectly lists this height as 262cm instead of 249cm which would be Neytiri's height. However, he is noticeably shorter than his mother in the family photo.
Clothing. Little apparel is worn by the Na'vi. Cloth, most likely woven from native flora of the planet is the basic garment worn by all Na'vi. It is possible that very little clothing is worn by the Na'vi because it is simply what is needed for the Na'vi to work and live taking minimally from the environment.
Josh Izzo, the Executive VP of Franchise Development for Avatar directly contradicted Landau in his own statement, claiming that "the answer is no," when it comes to Na'vi facial hair.
The Na'vi are monogamous creatures who mate (Na'vi name: muntxa si meaning "mate with, marry") for life. The mechanics of their reproduction are similar to that of humans and other Terran mammals. However, their unique physiology creates an experience fundamentally different from that of humans.
Lo'ak te Suli Tsyeyk'itan is the fourteen-year-old son of Jake Sully and Neytiri, the younger brother of Neteyam, the older brother of his only biological youngest sister, Tuktirey, and the younger adoptive brother of Kiri.
Her father is not a father, her father is another mother, Eywa, the Great Mother, the sentient life force of Pandora itself that exists in all things there, but is rarely understood. So essentially yes, Kiri was born from Eywa just like Anakin Skywalker was allegedly conceived by the Force itself and its midichlorians.
Sulley is a huge monster, measuring 7'8" and weighing 766 lbs according to both of his Scare Cards. He physically resembles a humanoid bear, and his body is covered in light teal fur, with the stomach area's fur being a light shade of blue. He also has purple polka dots, which are part of his fur's colour scheme.
While Jake and Neytiri's oldest and youngest biological children, Neteyam and Tuktirey "Tuk", have four fingers, seemingly taking after their mother, their middle child, Lo'ak, has inherited five fingers.
Jemaine Clement as Dr. Ian Garvin, a marine biologist. Britain Dalton as Lo'ak, Jake and Neytiri's second son and the narrator of the film. Trinity Jo-Li Bliss as Tuktirey ("Tuk"), Jake and Neytiri's eight-year-old daughter and their youngest child.
The first reason why Neteyam has four fingers while his siblings all have five fingers might be simple genetics. Since an avatar is a hybrid of Na'vi and human DNA, it's easy to imagine the genes that control the number of digits in the body competing with each other.
Even though he wasn't close with Spider as his brother, Neteyam mostly did it out of obligation to Lo'ak. This unfortunately led to Neteyam's death, as he was killed by an RDA soldier during the Battle of the Three Brothers, trying to help Lo'ak save Spider.
