I remember reading a book in high school about a young primitive human, on a planet during an ice age, that was filmed from a space station in orbit, that was sending the captured footage back to somewhere else, so that it could be turn into a tv show a thousand year later when the signal would arrive.
I remember that the age of the human was given in years of the planet he was living on, that were far longer than Earth's years. The action took place during an ice age reaching its end by the end of the book, that covered a long period of the life of the protagonist. Also I remember weird zebra like mount with an unusual colour. And maybe giant digging worm thingy ? Not sure about that one.
Does anyone know what that book could be ?