I like aliens because I think they are smart and special.
My aliens have green skin. They want to use them to hide their body in hassock because they learn about the poisonous spiders and the venomous snakes and can't eat grass. In addition, they use this trait to hide from plows to steal some corn or nuts.
My aliens live on planet#5 "Idop." There is a lot of land and only a little water. There are a lot of vegetables, fruit, animals, and some fish, but no birds there, so there are a lot of snakes and insects.
Nobody knows how long the aliens have lived there, because aliens are very arcane and smart creatures.