This is the 6901st most frequent Japanese word.
ホッキョクグマ
Polar bear.
Here, 'ホッキョクグマ' is used as the subject of the sentence, referring to the animal globally.
ホッキョクグマは北極に住んでいます。
Polar bears live in the Arctic.
Here, 'ホッキョクグマ' is used as the object of observation, referring to a specific instance of the animal.
動物園でホッキョクグマを見たことがありますか？
Have you ever seen a polar bear at the zoo?
In this sentence, 'ホッキョクグマ' is part of possessive/attribute 'ホッキョクグマの白い毛', underlining characteristics of the animal.