I'm not sure specifically which 'baby reindeer tru story' you're referring to. It could be about a real - life experience with a baby reindeer, like its growth, its relationship with its mother or other reindeer in the herd, or perhaps an adventure it had in the wild.
I don't have the details of the 'baby reindeer tru story' to share key points. However, if it's a story about a baby reindeer in the wild, key points might be about the season it was born in. If it was born in winter, survival would be a big part of the story. Also, any predators it had to avoid or any unique behaviors it showed that helped it survive would be important elements.
If we consider a more general view, in some regions where reindeer are native, baby reindeer might be part of a herd managed by indigenous people. The cast (assuming you mean group) of baby reindeer would grow up learning from the older reindeer in the herd. They'd learn how to forage for lichens, which is a major part of their diet, and how to migrate to different areas depending on the season. Their real story could involve survival in harsh Arctic or sub - Arctic climates, dealing with snowstorms and limited food resources during the long winters.
I'm not entirely sure. It might be a real story if it's based on someone's actual encounter with a baby reindeer in the wild or on a reindeer farm. However, it could also be a fictional story made up for entertainment, like in children's books or movies where baby reindeer are often depicted in magical or anthropomorphic ways.