Lifespan. Although lifespan data is incomplete, it is estimated Na'vi live 30% longer than the average human. Once born, Na'vi children mature more rapidly than humans, reaching mental, physical, and cultural adulthood between the ages of 15 - 17 Terran years.
Comics later reveal that without an outside force such as war acting against them, Avatars tend to live about 150 years. Ultimately, Aang's short life allowed some of the original characters to make appearances in The Legend of Korra, since her time as the Avatar could not start until after his death.
Neytiri's age in Avatar might seem more straightforward, but work out how old Neytiri has some complexities as well. 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.
AVATAR 3 Official Trailer (2024) | 20th Century Studios | Disney+
How old is lo ak in Avatar 3?
Lo'ak is old enough in Pandora to be a warrior and seems to be about 13 or 14 years old in Avatar: The Way of the Water given the time gap between Avatar and its sequel. It also appears that Neteyam and Lo'ak are close in age, so being a young 14-year-old would make sense.
Spider's Mother Is Paz Socorro (Revealed In Avatar Comics)
It has been confirmed through Avatar comics that Spider's mother is Paz Socorro. While Avatar: The Way of Water takes place a decade after the first movie, James Cameron's original sequel script did not have as big of a time jump.
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.
The most obvious distinction between an avatar and a genuine Na'vi is the number of fingers and toes. A Na'vi only has four digits, while the avatar body has five due to the human DNA. At the end of Avatar, Jake decides to transfer his consciousness to his avatar body permanently.
Neteyam is the eldest child of Jake and Sully, and grew up with Spider. So, if Na'vi gestates for a similar period to humans, Neteyam is around fourteen years old. Lo'ak is the younger brother of Neteyam, but the two seem to be approximately the same age.
Actual sexuality in the movie is almost nil (one 30-second, pretty tame love scene). Most Edgar Rice Burroughs John Carter of Mars covers were more titillating than the nudity in Avatar. I'd say age 8/9 on up will be old enough to see it (though you know your kids better than I do).
So, although he behaves and appears as a 12-year-old in the series, Aang is technically 112 based on his birth year. The years frozen while in the Avatar State took their toll. As Aang grew older, he learned that time drained his life force, causing him to die of old age at the (biological) age of 66.
The Na'vi have special organs (similar to kidneys) called Wichow that take advantage of this atmosphere to extract greater amounts of oxygen for their bloodstream. These organs use carbon dioxide and water in their bodies and convert them into methane and oxygen. The methane is exhaled back into the atmosphere.
Na'vi reproduction is similar to that of placental mammals on Earth. A Na'vi female will typically produce from one to ten offspring, often spaced widely apart in time.
They briefly touch on this in the movie but I wish they elaborated a bit more on it. Humans can last 10 seconds breathing na'vi air, but na'vi can breathe human air for much longer than that but they still at some point need a mask to help them breathe regular human air.
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.
Despite the mystery surrounding her conception, she is a naturally born Na'vi who was raised in the rainforests of Pandora. Her biological father, if she even has one, remains unknown. Because Grace had an avatar body, Kiri possesses human-like traits such as her eyebrows and five fingers on her hands.
It could be an immaculate conception. There's a theory that the film director James Cameron could be hiding a vital feature of the Na'vi. According to that theory, Na'vi could reproduce asexually. Unless that theory is true, Grace was impregnated by someone.
Augustine's colleague Norm Spellman (Joel David Moore) was the father and Grace conceived Kiri before the end of Avatar before somehow giving birth in her Avatar body. However, the more interesting theory is that Kiri is literally the child of Eywa due to some sort of immaculate conception.
Spider was shown to have grown a strong bond with Kiri, with many speculating that there could be a potential future romance between the pair, while his tumultuous relationship with Neytiri came to a dramatic head in the final moments of The Way of Water's climactic battle.
“We're into a very hectic two years of post-production right now,” Cameron told Campbell about the third film in his decades-spanning franchise. “So it will be Christmas of 2025.”
Spider, whom audiences initially thought was Avatar 2's hybrid Na'vi and human child, is actually fully human. Spider - real name Miles Socorro (played by young Jack Champion) - was born in Pandora's "Hell's Gate" colony sometime around the events of Avatar.
Kiri is the inquisitive and intelligent adopted daughter of Jake Sully and Neytiri. Not long after Grace Augustine's death, her dormant avatar was discovered to be pregnant, and Jake and Neytiri adopted the child when she was born.
After the battle, Jake's consciousness is permanently transferred into his avatar via the Tree of Souls. Over the following fifteen years, Jake has three children with Neytiri: Neteyam, Lo'ak, and Tuk, and adopts two others: Kiri and Miles "Spider" Socorro.
