Question Video: Identifying Which Animal Undergoes Estivation during Hot Summers | Nagwa Question Video: Identifying Which Animal Undergoes Estivation during Hot Summers | Nagwa

Question Video: Identifying Which Animal Undergoes Estivation during Hot Summers

Estivation is the term used for animals that go into short or prolonged dormant states when temperatures are too high or conditions are too dry. Which of the following animals undergoes estivation during summers? [A] Option A [B] Option B [C] Option C [D] Option D

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Video Transcript

Estivation is the term used for animals that go into short or prolonged dormant states when temperatures are too high or conditions are too dry. Which of the following animals undergoes estivation during summers? The answer options include images of four different animals: (A) a lesser Egyptian jerboa, (B) a lion, (C) a hare, or (D) a bear.

The question tells us that estivation refers to animals that enter a state of dormancy when temperatures become too high or the environment becomes too dry. A good example of organisms that experience such conditions due to the desert areas they often inhabit are the lesser Egyptian jerboas. During especially hot or dry periods like summers, the jerboa enters a dormant state in a burrow it digs deep in the ground where the temperatures remain cooler. And it estivates there until the conditions become more tolerable. This suggests that the correct answer is option (A), but let’s quickly double-check the other options.

Lions and hares do not enter periods of dormancy at all, so options (B) and (C) are definitely incorrect. Bears do enter states of dormancy, but this is not in response to hot or dry conditions. Instead, bears hibernate, which is in response to cold conditions. Most bears spend the coldest months of the year dormant and relying on stores of fat in their body to allow them to survive until conditions improve. Therefore, option (D) is not correct.

So we can confirm that the animal shown that undergoes estivation during hot, dry summers is (A), the lesser Egyptian jerboa.

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