Translation guide
The grizzly bear is a subspecies of brown bear native to North America. In Japanese, it is most commonly referred to by its English-derived name, but native terms and descriptive phrases also exist.
Referring to the specific North American bear subspecies
The most common and direct term, borrowed from English. Used in general conversation, media, and zoology.
グリズリーは北アメリカに生息しています。
Grizzly bears live in North America.
Literally 'gray bear', a calque of the English 'grizzly' (meaning grayish). Used in some contexts, but less common than グリズリー.
Literally 'American brown bear'. Used to distinguish the North American brown bear from the Eurasian brown bear, but not specific to the grizzly subspecies.
アメリカヒグマの亜種にグリズリーがいます。
The grizzly is a subspecies of the American brown bear.
ハイイログマはグリズリーとも呼ばれます。
The gray bear is also called a grizzly.