Massachusetts Wildlife Rehabilitator Practice Exam

Are black bears considered true hibernators?

1. Yes, they are true hibernators

2. No, they can become alert if disturbed

3. Yes, they enter a deep sleep

4. No, they remain active all winter

The correct answer is: No, they can become alert if disturbed

Black bears are not considered true hibernators in the strictest sense. While they do enter a state of reduced metabolic activity and can remain in their dens for extended periods during the winter, they are capable of becoming alert and active if disturbed. This behavior distinguishes them from true hibernators, which enter a deep sleep and do not wake until the hibernation period is over. The fact that black bears can wake up during the winter and even leave their dens if necessary shows their adaptability to environmental conditions. This characteristic allows them to respond to threats or food availability, demonstrating a range of behavioral adaptations essential for their survival. While some may argue that their deep sleep state is similar to that of hibernators, the ability of black bears to wake up and be active undermines the classification of being a true hibernator. Thus, the assessment of their hibernation behavior must take into account their responses to disturbances during the winter months.