GENETICS AND EVOLUTION
EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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They store twigs and sticks in their nest
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They migrate to a warmer climate
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They grow more feathers to stay warm in the winter
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They hide in bushes and wait for warm weather
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Detailed explanation-1: -Torpor. While many animals hibernate during winter, some species of birds go into torpor. This hibernation-like state allows birds to lower their body temperature and heart rate to conserve body heat. Like hibernation, it helps them to survive the cold temperatures of winter.
Detailed explanation-2: -Birds remain silent and hide in the winter. It is because they don’t feel comfortable in the cold weather. Was this answer helpful?
Detailed explanation-3: -Many birds fly south for the winter, leaving Canada for warmer climates. Genetics also give these animals a leg up, as many birds and mammals grow more fur and feathers in the winter to insulate warmth and undergo torpor by dropping their body temperatures a few degrees to reduce heat loss.