bubliksmaz
bubliksmaz t1_isjfy41 wrote
Reply to comment by Newbielurker in TIL: Sperms were thought to move by wiggling their tails side-to-side, like eels, for 350 years. But research shows that they roll as they move forward like a spinning top. by vect77
Oh come on, don't try and move the goalposts like that. Your original point was that early humans had no concept of fatherhood, no connection between the fact they had sex with a person and the baby that popped out 9 months later.
>Originally, like thousands of years ago, childbirth was just some magical thing women did. There was no real connection to the role fathers made- this only came about really with farming. But once they realised that “hey, my black bull’s calves are all a little black, no matter what the cow looks like. I wonder if that’s the same for humans”
This is patently false. Apes have more complex social structures than what you are implying. Take gorillas for instance, where only the silverback is permitted to mate with the females of the group, and if he is ousted the new leader will kill his infant offspring.
bubliksmaz t1_isj90cf wrote
Reply to comment by Newbielurker in TIL: Sperms were thought to move by wiggling their tails side-to-side, like eels, for 350 years. But research shows that they roll as they move forward like a spinning top. by vect77
Excuse me, brood parasitism only works because both bird parents go to great lengths to provide for their offspring, because they think they're theirs. Making this happen is the result of a stupidly complex evolutionary arms race.
Why do you think humans specifically would not have the ability to recognize this when all of our ape and primate relatives do? Yes, like many other apes we live communally and thus have an interest in ensuring our tribes survival, as a means to securing our offspring's survival.
bubliksmaz t1_ish4kge wrote
Reply to comment by Newbielurker in TIL: Sperms were thought to move by wiggling their tails side-to-side, like eels, for 350 years. But research shows that they roll as they move forward like a spinning top. by vect77
Fuck no. Even primitive animals are aware of who their offspring are, it's critical to the basic evolutionary function of ensuring their survival.
bubliksmaz t1_ish4a8y wrote
Reply to comment by goltz20707 in TIL: Sperms were thought to move by wiggling their tails side-to-side, like eels, for 350 years. But research shows that they roll as they move forward like a spinning top. by vect77
It's not the complexity that precludes certain things evolving - organisms are fucking complex enough. It's the fact that evolution needs to happen in tiny incremental steps, each of which are beneficial to the organism. For legs, that's easy: First they're just fins for swimming, then maybe they're used to drag ones body across a short stretch of very shallow water, then they gradually take more of the weight to make locomotion more efficient. For a wheel and axle... nah.
bubliksmaz t1_iwv3ipw wrote
Reply to A database of paper airplanes with easy to follow folding instructions by widowild
Where's the Harrier? This was considered the quintessential design growing up in the UK, I guess it's named after the British jet.
https://www.instructables.com/How-to-Fold-the-Harrier-Origami-Paper-Airplane/