Every winter, some animals disappear into a deep sleep, surviving the freezing temperatures in hibernation. From bears and ...

Before hibernation, animals must consume significant food to ... of the year hibernating in underground tunnels. There are 15 species of giant ground squirrels, known as marmots, found in Asia ...

But these aren’t the only places to find slumbering critters. During hibernation, animals slow their metabolisms and match their internal body temperatures to ambient conditions. Whether tropical ...

The cold, dark winter months can make it difficult for animals to find food and water. Hibernation helps some animals survive this time. These animals become inactive to save energy. An animal in ...

The cold, dark winter months can make it difficult for animals to find food and water. Hibernation helps some animals survive this time. These animals become inactive to save energy. An animal in ...