Often his subjects

[Tinkerbell]

Often his subjects, the polar bears, came to him for advice when ill or in trouble; but they wisely kept away from his hunting grounds, lest they might interfere with his sport and arouse his anger.
Often his subjects?? for he is a wise bear?

 

[Raymott]

Often his subjects, the polar bears, came to him for advice when ill or in trouble; but they wisely kept away from his hunting grounds, lest they might interfere with his sport and arouse his anger.
Often his subjects?? for he is a wise bear?

When a phrase is surrounded by commas, it's often in parenthesis.
Often his subjects came to him. His subjects were the polar bears. ->
Often his subjects, the polar bears, came to him.

 

[Tinkerbell]

I understood. Thank you, Raymott :-D