MICROANATOMY

Detailed explanation-1: -Hibernation is a state of inactivity, or torpor, in which an animal’s heart rate, body temperature, and breathing rate are decreased in order to conserve energy through the cold months of winter. A similar state, known as estivation, occurs in some desert animals during the dry months of summer.

Detailed explanation-2: -The term hibernation is often loosely used to denote any state of sustained torpor, inactivity, or dormancy that an organism might exhibit.

Detailed explanation-3: -During hot and dry seasons, animals go into a prolonged state of unconsciousness called aestivation. During aestivation, animals show factors like less breathing, decrease in body temperature and reduced heart rate. Animals like frog, crocodiles and salamanders undergo aestivation.

Detailed explanation-4: -dormancy, state of reduced metabolic activity adopted by many organisms under conditions of environmental stress or, often, as in winter, when such stressful conditions are likely to appear.