Females from at least 50 species also get into the act, and they can get creative: for example, female orangutans and capuchin monkeys have both been observed using sticks and other plant parts as makeshift dildos.
Finding your rhythm when you masturbate takes time and practice.
However, if a woman is experiencing pain during sex due to what she perceives as a shallow vagina, she should talk to her doctor.
Since they rest hanging upside down by their feet, that can get a bit messy.