Frequency Range of Hearing Is Probably the Same in the Universe

Organisms evolving independently on different planets will probably end up with the ability to hear things at the same frequency range as humans. That’s because the sound a predator makes as it approaches would be in the same spectrum regardless of atmosphere. Organisms that could react to these frequencies would have an advantage and survive.

I read about this idea in Project Hail Mary.

See also:

  • Similarity between organisms in different planets could also be evidence for panspermia but even without starting from a common “seed”, natural selection seems like it would yield similar traits
  • Then again, maybe life is another aspect of the anthropic principle