This question is about the article "On Thin Ice" by Susan Mcgrath
Answer:
She meant that polar bears are admirable.
Explanation:
The author of the article refers to polar bears as magnificent, grandiose and very admirable animals in the midst of the landscape where they fit. With that, we can understand that she describes polar bears in this way because they are beautiful and have impressive and admirable body structures, mainly because of the environment in which they live.