Suppose You Traveled Back in Time and Located the First

question 24

Multiple Choice

Suppose you traveled back in time and located the first animals to have developed feathers.You found that these animals were tree-dwelling ectotherms,able to run quickly but unable to fly.You also noticed that females of the species had no feathers at all,while males had bright blue feathers covering their tails.Which hypothesis of feather evolution would these data most support?

• A)Feathers initially evolved to aid in flight.
• B)Feathers initially evolved as a form of insulation.
• C)Feathers initially evolved for use in courtship displays.
• D)Feathers initially evolved to help tree-dwelling species glide from tree to tree.

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