Edit: I have no idea why the responses below have been taken over by pedants lacking in reading comprehension. Lordosis is the name for the behavior, the reflex, the posture, all the things. We're taking about presenting the vagina for copulation here. That is what the songs are talking about. It's not literal mating, but it's sexually exciting. These behaviors are deeply embedded in the primitive levels of our brain. It's even hypothesized that this is why we have butts at all.
The part/whole phenomenon is called synecdoche and is extremely common in all forms of communication.
New word to me, thank you. And apparently, in animals which display that behavior, it is reflexive, not a voluntary action. But a point of interest from your article:
Lordosis behavior is non-functional in humans, although lordosis-like positions can be observed in those being mounted from behind.
So therefore, while twerking mimics lordosis, it's really just dancing, albeit rather sexually.
Yes this is partially true but when you get low you usually also spread your legs, which has the secondary effect of flashing whatever you happen to be wearing (or otherwise). It's very difficult to dance and get low keeping the knees together.
So my point is, that there is more than just lordosis
Are you a bit or just never go out? If you would get out more you would realize not everything has to be scientific. It's just dancing and people do it cause it's fun. Dudes twerk too, how does that fit the lordosis definition?
Op asked a question. Root post answered the question. I added the scientific support.
If you don't think that there is a huge amount of scientific interest in human sexual behavior, you are the one who needs to get out more.
We're also not talking about twerking. That is a dance that is appealing because of it's similarity to the mating behavior that is the answer to ops question.
Because it makes it seem like you are thinking of the people involved first and foremost as objects of biological study, and that you are the kind of person to whom that sort of thinking comes most naturally.
I mean it very loosely approximates the appearance of lordosis as defined in the article you linked. But it isn't in fact lordosis, which makes the resulting reply chain pretty unbearable.
Bending over and sticking out your ass is literally presenting of the vagina.
Bending over and sticking out your ass is literally NOT LORDISIS and only roughly resembles what your cited source describes as lordosis, which for example, specifies an involuntary response that lowers the chest to the ground.
I'm just going from the fucking source you provided. Feel free to provide another.
You realize that lordosis is a neurological reflex, not a sexual position, right? The position lordosis causes in animals may resemble similar positions in humans, but they are not the same thing.