system
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human
[Avatar] What will happen to Jake Sully's body?

At the end of Avatar, Jake Sully's human body is left on Pandora, presumably to die without a conscious mind inside. The atmosphere is different and clearly can't support Earth-animal life, and it is never shown that Earth-animals can eat food from Pandora or vice-versa. So will Sully's body be eaten by scavengers if they can stomach it, eaten by bacteria already present on his skin and within him if they can survive in the atmosphere, or will something else entirely occur?
gpt
The Earth bacteria already in his body will cause him to decompose. However, there are no scavengers on Pandora which will find the corpse palatable, and to date there are no known species of bacteria or fungi on Pandora which can decompose Earth biomatter.

You may recall that the humans had to grow Earth crops on Pandora. The fruits that the natives on Pandora eat are unappetizing at best and toxic at worst. A human can get some carbohydrates from well-prepared Pandora fruits, but plant matter and animal meat can't even be broken down by human digestive enzymes. This is mostly because of basic chemistry. Although Pandora life is carbon-based, it uses a different set of amino acid pairs and codes for radically different proteins.