Hibernate
Hibernate explained in an easy to understand way:
Imagine when your phone battery is low, and you're far from a charger, so you switch to power-saving mode to conserve energy. This situation is similar to what animals do when they hibernate because they need to manage their limited energy resources during the winter. Just like your phone reduces its activity to save battery life, animals slow down their bodily functions and enter a state of deep sleep to survive the cold months when food is scarce, ensuring they make it through until resources are abundant again.
Practice Version
Hibernate: To sleep during the cold winter when the animal has limited food supplies. Hibernate. Hibernation is a state where animals slow down their metabolism to survive without eating for long periods during winter.