Traditionally, it has been assumed that the transverse dimension of the human pelvis is constrained by the efficiency of upright locomotion. “We argue that the transverse elongation of the pelvic inlet has evolved because of the limits on the front-to-back diameter in humans imposed by balancin...
It’s actually the remnant of a third eyelid. Known as the “plica semilunaris,” it’s much more prominent in birds and a few mammals, and functions like a windshield wiper to keep dust and debris out of their eyes. But in humans, it doesn’t work. It’s vestigial, meaning it no...
Under the biological concept of sex, then, it is impossible for humans to change sex — to be truly “transsexual” — for mammals cannot change their means of producing gametes. A more appropriate term is “transgender,” or, for transwomen, “men who identify as women.” And my conclusi...
AI systems are indeed fast, sufficient, and accurate. 2 . In fact, these are the very skills that make us human. Humans can gain information from non-verbal cues, while machines just can’t. ● 3 Only a human translator can match and reproduce the style and tone of the source ...
According to the pleasure theory (Abramson & Pinkerton, 2002), the pursuit of sexual pleasure is the central basis of human sexual motivation (and not the desire to reproduce). In this context, Conley (2011) emphasized that casual sexual contact with a man is likely to be less enjoyable for...
They change shape and color, and squirt ink. But they also will return your gaze, "as if they're scrutinizing you."
It's been about 6 million years since humans broke off from the other primates, and males are still far more aggressive than the females. Six million years is a long time for something to stay in a species if it's not being sustained by anything. In other words, these differences are ...
In humans, why do females undergo menopause and lose fertility but males do not? Why is there a risk of stunted growth for a young boy (pre-pbescent) taking anabolic steroids (substances that have similar effects as testosterone)? What is the effect of havin...
reproduce and achieve dominance and status. But it is tiring, so when you have an older body, it might be nice to stay with what is familiar and comfortable. Decreasing energy levels might equally play a role in humans. In addition, [Stanford researcher] Robert Sapolsky found that gr...
Giles - Okay, so that is the very, very key question. What is clear is that because the prime directive for human beings is to eat enough to reproduce. That's pretty much it. eat enough to survive long enough to actually reproduce. All of the pressure has been to - well, what happe...