system
Given the following post, respond as if you're commenting on Reddit:
human
Generally, males of our species have a lower voice than the females of the species. Is this observed in other animals as well? 

If so, why is this the case? Is it biologically beneficial? If not, when was this trait evolved and why did we evolve it?

In both cases, where on the evolutionary chain did this begin?
gpt
Male birds occasionally have higher pitched calls and brighter plumage. The peacock is a prime example of this. The male peacock has an incredibly annoying call if you've ever had the misfortune of living near one.