why do we have butt cheeks i dont understand why did we evolve this way
what use do butt cheeks haveÂ
oh my god I HAVE THIS KNOWLEDGE
fun fact: butt-cheeks are one of the things that make us superior to other animals okay note that other apes do not have butt-cheeks
okay donât quote me on this because I only did sixthform-bio and Iâm sure of forgotten loads of stuff but hereâs the down-low
back when we were evolving from ape to human, one of the most important things that happened was when our spine started meeting our brains at a sort of 90 degree angle instead of like 45 degrees, which meant that we could straighten up and walk on two legs which was a pretty rad development
except alas oh no our muscles werenât built to allow us to walk around on two legs because that requires a sort of twisty motion of your hips as opposed to whatever the fuck it is everything else does AND SO ape-people started evolving with longer, narrower waists so that our bodies could twist with every footstep and we could strut along the fashionable catwalk that is neanderthal evolution
but then once this had happened, people realised that we had an advantage over other animals and we would be better at chasing and killing them but we werenât very good at running
so thatâs when we developed the glutenus maximus which is a really badass-sounding name for the muscle in your derriere which helps us to support our spine in an upright position so we donât get tired, and helps the legs to rotate nicely so that we can run, and has a nice big fat storage around it to help us get energy so that we can run
and that, basically, is the butt-cheek
tl;dr - butt-cheeks were the result of thousands of years of natural selection so that we could run fast and slaughter things
thank you so much for such a fabulous, informative and detailed explanation on the evolution of the butt
i feel enlightened and empowered to know my butt is for such a worthwhile purpose, so thank youÂ
i love this butt science post so much
Also for squeezing
fun fact: that fat on the cheeks? Incredibly useful source of energy to that muscle during endurance exertion, when glycogen is more or less depleted; carries the advantage of being right there and also serving to pad the important muscles in case of injury and provide a comfortable cushion on which to sit. Fat pads do things, and while weâre most used to thinking of individual fat pads in terms of their structural uses, often they function by providing easy sources of local power for sustained use.
Humans actually have quite a lot of intramuscular fat relative to some other speciesâIâm used to mice, which donât bother, for example; neither do rabbits, which are so infamously lean that dining too heavily on them can be bad for human health. Of course, neither species relies much on endurance. Fast twitch muscles, which are good for sprinting and darting, tend to be powered by glycogen availability even within species; by contrast, slow twitch and highly oxidative muscles that are used over sustained exercise are generally powered by intramuscular fat.
(I am reading an interesting thesis tonight that also notes that relative to horses, dogs have more intramuscular fat in hindquarter musclesâexactly what you would expect to see in the context of intramuscular fat as a local fuel for endurance running, since dogs areâlike humansâadapted for long distance persistence hunting.)
Next time you slap that jiggly ass, stop and reflect on how important and useful ALL its components are! In a very real sense, humanityâs ass defines us nearly as strongly as our heads.
So what Iâm hearing is that having a dump truck ass is literally Evolutionarily Advantageous. Even great-great-great-grandma Ungalug back in the Pleistocene woulda been hunting for a slice of that Cake. Help Iâm a Miocene megafauna trying to escape predation but these Hominid ass-cheeks are dummy thick and the resonant clapping of their fatty pads keep driving them onwards beyond the limits of my exhaustion
This is the ass of a killer, Bella.


























