Does the size of the vulva change by age or does it remains the same as it is since after birth?

The shape and appearance of the vulva naturally change over the years.

Explanation:

The shape and appearance of the vulva naturally change over the years. The most obvious changes are linked to hormonal changes, occurring at puberty, during the menstrual cycle, in pregnancy and around menopause.

if the hares very faster than they are now, and thus the lynx's hunting success rate drops because it will be harder to catch them, the rate that will change will be the pray-rate. the pray-rate will change because more hares will be able to survive, thus more individuals for reproduction, so the end result will be increasing population of hares.

the predator-rate will remain pretty much the same because there will be more than enough pray, but the hunting success rate is stagnant.