Selected recurrent patterns or "laws" of evolution, of potential use for speculative biology. List compiled by Neocene's Pavel Volkov, who in turn credits its content to Nikolay Rejmers (original presumably in Russian). These are guidelines, and not necessarily scientifically rigorous.
Dollo's Law, or irreversibility of evolution: organisms do not evolve back into their own ancestors. When mammals returned to the sea, they did not develop gills and dermal scales and change back into fish: they became whales or seals or manatees, who retain mammalian traits and show marks of land-dwelling ancestry.
Roulliet's law, or increase of complexity: both organisms and ecosystems tend to become more complex over time, with subparts that are increasingly differentiated and integrated. This one is dodgier: there are many examples of simplification over time when it is selected for, for example in parasites. At least, over very large time scales, the maximum achievable complexity seems to increase.
Law of unlimited change: there is no point at which a species or system is complete and has finished evolving. Stasis only occurs when there is strong selective pressure in favor of it, and organism can always adapt to chaging conditions if they are not beyond the limits of survival.
Law of pre-adaptation or exaptation: new structures do not appear ex novo. When a new organ or behavior is developed, it is a modification or a re-purposing of something that already existed. Bone tissue probably evolved as reserves of energy before it was suitable to build an internal skeleton from, and feathers most likely evolved for thermal isolation and display before they were refined enough for flight.
Law of increasing variety: diversity at all levels tends to increase over time. While some forms originate from hybridization, most importantly the Eukaryotic cells, generally one ancestor species tends to leave many descendants, if it has any at all.
Law of Severtsov or of Eldredge-Gould or of punctuated equilibrium: while evolution is always slow from the human standpoint, there are moments of relatively rapid change and diversification when some especily fertile innovation appears (e.g. eyes and shells in the Cambrian), or new environments become inhabitable (e.g. continental surface in the Devonian), or disaster clears out space (e.g. at the end of the Permian or Cretaceous), followed by relative stability once all low-hanging fruit has been picked.
Law of environmental conformity: changes in the structure and functions of organisms follow the features or their environment, but the specifics of those changes depend on the structural and developmental constraints of the organisms. Squids and dolphins both have spindle-shaped bodies because physics make it necessary to move quickly through water, but water is broken by the anterior end of the skull in dolphins and by the posterior end of the mantle in squids. Superficial similarity is due to shared environment, deep structural similarity to shared ancestry.
Cope's and Marsh's laws: the most highly specialized members of a group (which often includes the physically largest) tend to go extinct first when conditions change. It is the generalist, least specialized members that usually survive and give rise to the next generations of specialists.
Deperet's law of increasing specialization: once a lineage has started to specialize for a particular niche, lifestyle, or resource, it will keep specializing in the same direction, as any deviation would be outcompeted by the rest. In contrast, their generalist ancestors can survive with a marginal presence in multiple niches.
Osborn's law, or adaptive radiation: as the previous takes place, different lines of descent from a common ancestor become increasingly different in form and specializations.
Shmalhausen's law, or increasing integration: over time, complex systems also tend to become increasingly integrated, with components (e.g. organs of an organism, or species in a symbiotic relationship) being increasingly indispensable to the whole, and increasingly tightly controlled.
I can't believe home depot literally produced a wildly successful science fiction musical and we all just pretend it didn't happen. on one hand yes it had a boring white guy main character but like.... home depot just... Made it? And it had shit ton of box office sales? and no one even talks about this. this is like avatar (2009) all over again
So what I’ve learned from the past couple months of being really loud about being a bi woman on Tumblr is: A lot of young/new LGBT+ people on this site do not understand that some of the stuff they’re saying comes across to other LGBT+ people as offensive, aggressive, or threatening. And when they actually find out the history and context, a lot of them go, “Oh my god, I’m so sorry, I never meant to say that.”
Like, “queer is a slur”: I get the impression that people saying this are like… oh, how I might react if I heard someone refer to all gay men as “f*gs”. Like, “Oh wow, that’s a super loaded word with a bunch of negative freight behind it, are you really sure you want to put that word on people who are still very raw and would be alarmed, upset, or offended if they heard you call them it, no matter what you intended?”
So they’re really surprised when self-described queers respond with a LOT of hostility to what feels like a well-intentioned reminder that some people might not like it.
That’s because there’s a history of “political lesbians”, like Sheila Jeffreys, who believe that no matter their sexual orientation, women should cut off all social contact with men, who are fundamentally evil, and only date the “correct” sex, which is other women. Political lesbians claim that relationships between women, especially ones that don’t contain lust, are fundamentally pure, good, and unproblematic. They therefore regard most of the LGBT community with deep suspicion, because its members are either way too into sex, into the wrong kind of sex, into sex with men, are men themselves, or somehow challenge the very definitions of sex and gender.
When “queer theory” arrived in the 1980s and 1990s as an organized attempt by many diverse LGBT+ people in academia to sit down and talk about the social oppressions they face, political lesbians like Jeffreys attacked it harshly, publishing articles like “The Queer Disappearance of Lesbians”, arguing that because queer theory said it was okay to be a man or stop being a man or want to have sex with a man, it was fundamentally evil and destructive. And this attitude has echoed through the years; many LGBT+ people have experience being harshly criticized by radical feminists because being anything but a cis “gold star lesbian” (another phrase that gives me war flashbacks) was considered patriarchal, oppressive, and basically evil.
And when those arguments happened, “queer” was a good umbrella to shelter under, even when people didn’t know the intricacies of academic queer theory; people who identified as “queer” were more likely to be accepting and understanding, and “queer” was often the only label or community bisexual and nonbinary people didn’t get chased out of. If someone didn’t disagree that people got to call themselves queer, but didn’t want to be called queer themselves, they could just say “I don’t like being called queer” and that was that. Being “queer” was to being LGBT as being a “feminist” was to being a woman; it was opt-in.
But this history isn’t evident when these interactions happen. We don’t sit down and say, “Okay, so forty years ago there was this woman named Sheila, and…” Instead we queers go POP! like pufferfish, instantly on the defensive, a red haze descending over our vision, and bellow, “DO NOT TELL ME WHAT WORDS I CANNOT USE,” because we cannot find a way to say, “This word is so vital and precious to me, I wouldn’t be alive in the same way if I lost it.” And then the people who just pointed out that this word has a history, JEEZ, way to overreact, go away very confused and off-put, because they were just trying to say.
But I’ve found that once this is explained, a lot of people go, “Oh wow, okay, I did NOT mean to insinuate that, I didn’t realize that I was also saying something with a lot of painful freight to it.”
And that? That gives me hope for the future.
Zionists, as per usual, collaborating with violent antisemitic fascists to bully, intimidate and assault Palestinians including their Jewish supporters. Another Saturday in America.
mecha combat
Too many beds
Accidentally kidnapping a mafia boss
Really nice guy who hates only you
Academic rivals except it’s two teachers who compete to have the best class
Divorce of convenience
Too much communication
True hate’s kiss (only kissing your enemy can break a curse)
Dating your enemy’s sibling
Lovers to enemies
Hate at first sight
Love triangle where the two love interests get together instead
Fake amnesia
Soulmates who are fated to kill each other
Strangers to enemies
Instead of fake dating, everyone is convinced that you aren’t actually dating
Too hot to cuddle
Love interest CEO is a himbo/bimbo who runs their company into the ground
Nursing home au
Due to a combination of the residual childhood trauma hypervigilance and ADHD selective processing I am constantly on both ends of the spectrum of being aware of things. Did I notice the way someone shifted their arm in a manner that they usually don't, indicating that they may be irate with this situation? Yes. Did I notice that conversation in this room is not drifting towards a subject that these people would naturally talk about next, indicating that they are avoiding the subject? of course. Did I notice that the person who frequently parks here has removed that sticker from their car? Yeah clearly. Did I notice that truck almost hitting me? No.
My brain is the box that Schrödinger's cat is in, and there is no knowing whether I am aware of everything or absolutely nothing of what's going on unless you crack it open and check. Before that, I exist simultaneously in both the states of hyper-awareness and not being aware of jack fucking shit.
wakes up: tired
mid day: tired
afternoon: could literally sleep for 20 hours straight
evening: normal
middle of the goddamn night: its time to Go!!!!!!!!!
I totally know how tagging works.
Not the “oh Einstein was probably autistic” or the sanitized Helen Keller story. but this history disabled people have made and has been made for us.
Teach them about Carrie Buck, who was sterilized against her will, sued in 1927, and lost because “Three generations of imbeciles [were] enough.”
Teach them about Judith Heumann and her associates, who in 1977, held the longest sit in a government building for the enactment of 504 protection passed three years earlier.
Teach them about all the Baby Does, newborns in 1980s who were born disabled and who doctors left to die without treatment, who’s deaths lead to the passing of The Baby Doe amendment to the child abuse law in 1984.
Teach them about the deaf students at Gallaudet University, a liberal arts school for the deaf, who in 1988, protested the appointment of yet another hearing president and successfully elected I. King Jordan as their first deaf president.
Teach them about Jim Sinclair, who at the 1993 international Autism Conference stood and said “don’t mourn for us. We are alive. We are real. And we’re here waiting for you.”
Teach about the disability activists who laid down in front of buses for accessible transit in 1978, crawled up the steps of congress in 1990 for the ADA, and fight against police brutality, poverty, restricted access to medical care, and abuse today.
Teach about us.