What is the current understanding of giraffes' long necks?

What is the current understanding of giraffes' long necks?
  1. They acquired them through use and disuse of organs
  2. They are a result of natural selection
  3. They are the end result of an unknown process
  4. None of the above

Solution

The current understanding of giraffes' long necks is that they are a result of natural selection, where individuals with longer necks were more successful in foraging for food and thus passed on this trait to their offspring.

Asked in: NCERT

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