Refers to the animal, especially the North American groundhog (woodchuck) or the European alpine marmot. In Japanese, the term is often used in nature documentaries, zoos, or when talking about Groundhog Day.
Marmots are animals that hibernate.
アメリカでは、2月2日はグラウンドホッグデーと呼ばれ、マーモットが春の訪れを予測します。
In the United States, February 2nd is called Groundhog Day, and a marmot predicts the arrival of spring.