#The nature of humans

[aestheteasteria]

seeking, yearning, reaching hands

[a-hollow-forest]

"people show their true colours in life threatening situations" no, they show you what they act like when they're mortally terrified, an emotion notorious for literally turning your entire brain off to the point where people who go into those situations as a profession need to be literally trained on how to not have that happen

[casasupernovas]

shoutout to my favourite doctor who blooper ever

Doctor: Martha, you trust me don't you?

Martha: Of course I do.

Doctor: Because it all depends on you.

Martha: What does? What am I supposed to do?

David Tennant, breaking character and returning to his natural Scottish accent: Well there's a watch, but I've lost it.

transcript from @suz-blog

[metamorphesque]

The relation between nature and human being: Agnieszka Lepka

[doom-dreaming]

"when i was your age, i was working three jobs to help support my family" and "when i was in college i was sleeping on a mattress on the floor and living off of soup"

YOU SHOULDN'T HAVE HAD TO DO THAT. NO ONE SHOULD HAVE TO DO THAT. I DON'T KNOW HOW TO EXPLAIN TO YOU THAT THIS ISN'T A CHARACTER-BUILDING LESSON, IT'S JUST BAD

[nipuni]

"Midnight" is one of my favourite episodes!!

A speedpaint video of this will be available at my Patreon on may 1st

[biggest-gaudiest-patronuses]

zany to me how these um actually nihilists like to pretend that "um actually love/friendship/cooperation/kindness isn't real bc we evolved that way to benefit ourselves as a species..." um YES? that's also where tool use comes from? that's where cooking comes from? am i supposed to think social bonds & tool use & cooking aren't "real" because they evolved over time instead of appearing fully formed from the ether?

sorry u can't enjoy things. im a superior being twirling a fork in my bowl of delicious noodles whilst staring in adoration at the world

[mascwoman]

The audacity of an adult lesbian not liking fat women. Have you never fucking seen a woman age?

[flagellant]

yeah we might be brothers in christ but so were cain and abel so shut the fuck up before i decide to find a rock about it

[ithinkdogshouldvote]

Guardian swap au for 4/13 ^ ^

[aethersea]

the question of fic comments is very straightforward actually. readers do not owe writers comments. writers do not owe readers fic. there is no bargain, no transaction, no debt.

fic is a gift. comments are a gift. gifts are exchanged between friends, out of love, not out of obligation.

I write for myself. I post it for others, as a gift, because their joy brings me joy. I read for myself. I comment for the author, as a gift, because their joy brings me joy. perhaps we were not friends before, but we are now, however fleetingly, because we have given each other gifts out of love.

[artifacts-and-arthropods]

2,300-Year-Old Plush Bird from the Altai Mountains of Siberia, c.400-300 BCE: this figure was crafted with a felt body and reindeer-fur stuffing, all of which remains intact

This plush bird was sealed within the frozen barrows of Pazyryk, Siberia, for more than two millennia, where a unique microclimate enabled it to be preserved. The permafrost ice lense formation that runs below the barrows provided an insulating layer, preventing the soil from heating during the summer and allowing it to quickly freeze during the winter; these conditions produced a separate microclimate within the stone walls of the barrows themselves, thereby aiding in the preservation of the artifacts inside.

This is just one of the many well-preserved artifacts that have been found at Pazyryk. These artifacts are attributed to the Scythian/Altaic cultures.

Currently housed at the Hermitage Museum.

[marthajefferson]

human brain angiogram / young bare-branched oak /

[robreyart]

Bioluminescence Oil, 18 x 24 in, 2015, First in the Bioluminescence series. The light of life and the natural world. In all the vastness of space, as of yet, we know of only one planet that supports life. At least within some great distance from here, life is rare. Each organism being the exquisite and detailed product of billions of years of evolution, life is precious. This point of light and inspiration stands in contrast to the lanterns and lights that are historically thought to be sources of illumination but are now dimmed; mythologies and superstitions humans have created as we struggled in the dark of ignorance to understand our world. But the process of science has revealed a luminous, living planet, more amazing than we could have ever imagined. Where the intricacies of biology are miracles of evolution and our consciousness is a gift of natural processes that allow us to experience what it is to be alive. Prints: https://robrey.storenvy.com

[planariaareneat]

How The Nocturnal Bottleneck and Nipples Make Us Human

Almost every post here considers what humans do have, really. It’s a little tiring; realistically every world has its harsh environments and vicious species and a sophont to match. We probably wouldn’t be unique for our adaptability or our persistence or even adrenaline

But our evolution is fucked up as hell, to put it lightly.

Mammals went through what’s been dubbed the nocturnal bottleneck essentially since the start of the mesozoic right up until the Cretaceous ended the archosaur’s exclusive hold over the daylight. We lost a lot of things from every mammal spending most of its time in either a cramped, suffocating burrow or scrounging around in the faint hours of nighttime. Our blood cells lost their nuclei to hold more oxygen while we spent time deep underground, we lost protections against ultraviolet rays in our skin and eyes, we can’t even repair our own DNA using the light of the sun. Most aliens probably wouldn’t have such traits unless their evolution followed a very similar path to ours. They’d be able to see ultraviolet and wouldn’t have to worry about sunburn and all the wonderful privileges essentially all fish, birds, amphibians, and reptiles enjoy as we speak. 

There’s also what we gained from spending so much time in the dark.

Brown fat is only found in mammals, it’s a special type of fat which bear cells with several oil droplets and are utterly jammed with mitochondria. This lets it make heat, a lot of it, fast. We don’t even need to shiver to induce this heat generation from brown adipose tissue - factor in our downright hyperactive mitochondria, and we can warm up quickly. Sure, it doesn’t have too much use in adult humans, but it keeps our infants warm and still provides a little boost the whole run we have in this universe.

Unless aliens also went through a time where their small ancestors had to face cold nights, they’d have to produce heat the old fashioned way when chilled. Aliens might have to shiver the whole time they’re in a cold room while the human watches in confusion, quite literally unshaken, and wonders if the room is a lot colder than the thermostat set to 60 says. The aliens stare at their companion in confusion, it’s just a normal temperature to shiver at after all, how is the human sitting so still?

Our small ancestors spending all their time out foraging at night is also why we have such a good sense of touch, smell, and hearing. They were more important senses than vision (we’re lucky to have even redeveloped basic color vision, frankly) at the time and place and simply ended up continuing to serve us well. Birds and reptiles rarely have acute senses of smell and the latter especially are lucky to have acute hearing, and birds rarely have impeccable hearing themselves either. Our skin is free of scales and honed to sensitivity, and our external ears and complicated ear bones provide an immense range of hearing (from 20 all the way to 17,000 hertz!).

Aliens might not be able to pin down the chirp of a cricket or the light click of a lock being picked. The human might be the only one on board a ship that can pick out the finer sounds of the engine’s constant thrum and know the critical difference between when everything is fine and when something is wrong. The human could probably pick out the sounds of an approaching enemy’s careless footsteps - they’re only as light enough for *them* to stop hearing them, after all - and be the one to see the horrified expression (well, more on that later) on their face when we get the drop on them in spite of their perceived stealth. 

But perhaps the most versatile, convoluted, amazing, and utterly unique trait we have is right on your face this instant. Lips.

Lips in most animals are a simple seal to hold in the mouth’s moisture and protect the teeth, even if they’re supple they’re NEVER muscular except in mammals, and we have only one thing to thank for it; milk and nipples. Lips evolved exclusively to allow babies to suckle, it required a vacuum to be created in the mouth, and with no other animal having anything like a nipple it never happened in other animals. Many animals make milk, to be frank, but no other animal has nipples.

Your cheeks and lips are a marvel among tetrapods, no other animal can suck like mammals can. Aliens wouldn’t have straws or even be able to sip from the edge of a glass, they’d have to have a proboscis or simply tilt the whole thing back. Aliens likely won’t have woodwind instruments or balloons you can blow into. We take so much about our lips for granted. Hell, our muscular faces are vital for expressions, we’re probably absolute facial contortionists among a cast of creatures with mandibles and beaks and expressionless scaly maws. Aliens might find us ridiculously easy to read, if anything, compared to their own kind (all the better to deceive them) - or perhaps they’d find us hard to decipher anyways, with our lack of color-changing skin or erectable crests of bright feathers. Baring teeth might not be seen as a sign of aggression in most of the universe, smiling would be all too distinctly human. 

Perhaps with how infectious we are sometimes, that’s what we’d contribute to the universe; others might have to make do with opening their mouths just enough to show their teeth or splaying their innumerable mouthparts with just the right curve, but perhaps we’d teach the galaxy to smile, one ally at a time. 

Wouldn’t that be amazing?