system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How do we know that smaller Hominid species like Homo Floriensis aren’t just misidentified juvenile members of other Hominid species?
gpt
You can tell people are still growing by if their bones are fused or not.  For example if the femur is still growing the caps wont be attached, if they are attached you know they've reached their adult height for that bone.