Chapter 7: Problem 13

Distinguish between hibernation and torpor.

Short Answer

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Answer: Hibernation is a long-term, seasonal state of dormancy observed primarily in mammals, where the animal's metabolic rate decreases, and body temperature drops to save energy during harsh conditions, such as cold temperatures or food scarcity. Torpor is a short-term state of dormancy observed in mammals, birds, and reptiles, where the metabolic rate and body temperature decrease for a few hours to days to conserve energy during temporary challenges, such as a cold night or limited food availability.

Step by step solution

Define Hibernation

Hibernation is a long-term, seasonal state of dormancy where an animal's metabolic rate significantly decreases, and its body temperature drops to save energy. This process is primarily observed in mammals and is used to survive through periods of harsh conditions, such as cold temperatures or food scarcity. An example of an animal that hibernates is the bear.

Define Torpor

Torpor, on the other hand, is a short-term state of dormancy where an animal's metabolic rate decreases, and its body temperature drops for a shorter period, typically a few hours to days. This process is used to conserve energy when the animal is faced with a temporary challenge, such as a cold night or limited food availability. While torpor can be seen in mammals, it is also observed in birds and reptiles. An example of an animal that undergoes torpor is the hummingbird.

Compare Hibernation and Torpor

Both hibernation and torpor involve a decrease in metabolic rate and body temperature to save energy, allowing the animal to survive unfavorable conditions. However, hibernation is a long-term, seasonal process, while torpor is short-term and can be seen more frequently. Additionally, hibernation is primarily observed in mammals, whereas torpor is also seen in birds and reptiles.

Examples of Hibernation and Torpor

Examples of hibernation include bears, ground squirrels, and hedgehogs. Examples of animals that undergo torpor include hummingbirds, bats, and some species of reptiles such as the garter snake. To remember the difference between hibernation and torpor, think of them as energy-saving strategies with different time frames: hibernation is a long-term solution for seasonal changes, while torpor is a short-term answer to more temporary challenges.

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Distinguish between hibernation and torpor.

Short Answer

Step by step solution

Define Hibernation

Define Torpor

Compare Hibernation and Torpor

Examples of Hibernation and Torpor

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