Do Grizzlies Hibernate In The Winter?
Do Grizzlies Hibernate In The Winter? Do grizzlies hibernate in the winter? Grizzlies experience three distinct phases in a year. Normal activity in the spring and summer; autumn hyperphagia, when bears pack on the pounds to prepare for winter; and hibernation. Hibernation can last anywhere from 4-7 months, triggered by seasonal food shortages, cold temperatures