system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: What is the evolutionary reason and purpose of males of species generally having lower pitched vocals than females, particularly humans?
gpt
Low pitched voice is an indicator of high testosterone levels and sexual fitness. Generally, women tend to find men with lower pitched and deeper voices more attractive. This helps them to seek out men who are genetically fit and able to produce a healthy offspring.