Vida Enigmática

"Who speaks for Earth?"

Who speaks for Earth?

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The value of the scribbly gum moth.

December 3, 2016 — leslie dean brown

Continuing on from one of my last posts…

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You see the photo above? That is the trunk of the aptly named “scribbly gum”. It’s a fairly common Eucalyptus tree, found all over Australia, and this name refers several different species: Eucalyptus haemastoma, Eucalyptus sclerophylla, Eucalyptus haemastoma, Eucalyptus racemosa, Eucalyptus signata and Eucalyptus rossii.

[keep in mind that I have turned the photo 90 degrees, from a portrait to a landscape view, so that it fits better in with the blog format, it’s normally like this]

These marks are caused by little scribbly gum moth larvae (Ogmograptis scribula). Right. Okay, so we know what ’causes’ the scribbles. Or do we?

No, I think we just know what species is responsible for the marks. Why they’re there. It’s not the same thing as knowing why they are squiggly in the first place.

There’s more to know. The squiggles are most commonly found around the base of the tree trunk and the zig zags are frequently oriented in a vertical direction. This is the exact same photo shown the “right way up”. Notice that the pattern looks a bit different. That means it is an ‘anisotropic’ pattern (not the same in all directions).

The angles of each zig and zag look to go from about 15°, up to about 90°. Perhaps the average is between about 30° to 60°. I do not know exactly. That requires many measurements to be made.

So now to the more important questions. Why are they squiggly? Why are the marks zig zags? Why aren’t they straight? Do biologists know why these insects leave zig zag shaped marks instead of straight ones? Perhaps. I don’t know. But I’ll hazard a guess.

Why are they squiggly then? I think it’s because if they left straight marks, if they chewed in a continuous direction, at any random angle on the same plane of the treek bark, then they would probably hurt the tree in some lethal way. They might cause a phenomenon knows as “ring-barking”. And then the tree would die and there would be no more scribbly gum moths. Those moths need those trees. That’s a simple explanation.

And this may explain why the squiggles are vertically positioned too. Because a horizontal scribble (like the photo shown above) would still kill the tree, if they were continuous. And so perhaps our scribbly gum moth larvae senses the direction of gravity, somehow, and starts muching perpendicular to that. But then why are the squiggles aligned with the smaller limbs, rather than to the ground?). Somehow I think the scribbly gum moth larvae ‘knows’ the radius of curvature of the limb that it’s on and starts chewing according to that information.

Why is their density higher on the fatter limbs? I really do not know. Maybe it’s because on the smaller limbs, they wouldn’t have to travel so far before causing ring-barking. The threshold to cause ring-barking would be much less on the thinner limbs. But on the main trunk, and even quite high up on the main trunk, they can get away with it.

“Well okay” you might say, “so what?”. Why so many questions? Because this is how science works, albeit a lot slower. By asking a series of never-ending questions. Questions that later help us to understand and explain how the world works. Questions that later lead to unexpected discoveries and innovative new technologies.

Here’s the thing. Do we know how the insect “knows” when to initate each change in direction? What makes it go alternatively left and then right? If it always turned to the left, or to the right, then we would get a circle. “Four lefts make a circle”. Circles must be bad for the tree. Or the moth. I don’t know. That’s a guess.

But we still don’t “know” what controls the scribbly gum moth larvae to turn left and right at the appropriate place along the zig zag, do we? Does it chew a certain number of times and then turn? Does it crawl a certain number of ‘paces’ and then turn? Does it wait a certain amount of time before turning? Or does it somehow sense the radius of curvature of the tree limb that it is on? How does it ‘remember’ what direction it turned last? How does it ‘measure’ the amount that it is turning?

What about the radius of the turn? That appears to be related to the width of the line, to the size of the larvae.

How does it know when to abandon the old squiggle and start a new one?

Again, you might say: “so what?. How is any of this relevant to us?”.

Sure we can get a robot to turn left and right whenever we want. With ones and zeros. But can we control an insect, a biological robot, in other words a sustainable robot, to turn left and right whenever we want? With DNA sequences? With proteins? With neural networks? No we cannot. At least, not as far as I know…

It’s more than just “they have a very small brain that controls them”. That is not enough knowledge. These scribbly gum moth creatures are all born with instinct. A form of genetic pre-programming. They don’t teach eachother how to make scribbles. They just know. They know automatically.

You see, if we want to be able to get termites to build skyscrapers for us, then we’re going to have to know how to make the animals turn. We’re going to have to program them to follow the original instructions. Follow directions. Aren’t we? That’s a very simple but overlooked requirement, that is —turning— of a generically programmed biological robot.

They’re going to have to be genetically engineered, programmed –adapted– to perform certain tasks — turn whenever we want them to turn. To be able to leave a space for a window, say. And teaching a termite or a caterpillar or a termite new tricks is not quite as easy as teaching a dog new tricks. They’ll most likely have to be born that way. As I say, pre-programmed. [Read more…]

Today’s update?

December 3, 2016 — leslie dean brown

Today, I refer you to two other links.

Please go and read this. And then this.

The cracked article is tongue-in-cheek and obviously not ‘serious’. I had a good laugh. Great writing skills.

But what about Goop? Seriously?! When you’re reccommending people to go out and spend £12k / US$15k / AUD$20k on a gold-plated dildo, I think rich people are just asking for a revolution. They’re just asking for it!

lelo_insignia_inez_packaging_gold_2x_0

If this is what being ‘rich’ is about, then you can stick that silver butt plug, with horse tail, right where the sun don’t shine and the moon don’t fit — right up your tight little arsehole! Right where it belongs. Instead of on that cheap acrylic perch you have it resting on. ‘Cause I want nuthin’ to do with it.

And not because it’s ‘kinky’. I don’t have a problem with ‘kinky’. It’s “rich kinky” I can’t stand. And it’s not just one gold-plated twenty thousand dollar dildo I’m whinging about. It’s two. Here’s the other one:

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Gwyneth, Coco de Mer, Lelo, I think you’re completely out of touch with reality.

The world doesn’t need more of this crap. The rest of us live on a different world. Another world with overpopulation, deforestation, extinction, pollution, global warming, etcetera. That world. Remember that one?

I think your designers ought to be shot.

And if you’re out spendin’ 20k on a gold-plated dildo, you probably deserve to get mugged on a French highway. Because poorer people are getting fed up with being fucked over by banks and insurance companies and everyone else who doesn’t play fair. They struggle to pay their mortgage or their rent. And then they see this. And that is their way to restore some sort of “monetary equilibrium”.

If you’ve got this much money to play with, give some it to charity. Seriously.

Our ancestors have not been working for hundreds, thousands of years so you can splurge on (and profit by) this unsustainable bullshit.

Perhaps I should change this site to “ecoNazi.org”? Maybe I’ll buy that domain… just in case.

Aboriginal elder speaks out

December 1, 2016 — leslie dean brown

You know, just today [10/09/16], I overheard someone at Stanwell lookout say “Awww. You know, we live in the best country, don’t we?”. And looking around at this horrible new ‘development’ consisting of an ugly concrete non-functional ‘aesthetic’ wall including horribly kitch mosaic tiling, concrete car park & benches, stainless steel railings, stupidly symmetrical plantings (barely alive), I just had to bite my tongue and walk in the other direction. Because in that moment, I realised that we’d made that lookout way, way uglier than it did before. Seriously. Some people must be blind.

My best case yet for conserving biodiversity.

November 30, 2016 — leslie dean brown

abstract36
Illustration by leslie dean brown. © 2016. All rights reserved.
Scientists are time-travellers, who can glimpse ~100 years into the future. When I think of the “the future”, here is what I ‘see’:
  • I don’t see ‘manmade’ things flying everywhere; I see ‘birds’ and ‘insects’… behaving like drones. Or rather, I see drones –robots– acting like birds, fish and insects. A form of synthetic nature. Robots. Nanobots.
  • I see a completely flat biodegradable pizza box that is able to reheat your pizza… at the push of a button… biodegradable battery included. Biodegradable materials.
  • I see flexible circuit boards. Biodegradable/compostable circuit boards, adhesives and elastomers. Ones that feed nutrients into the soil rather than leaching out toxic chemicals. Compostable materials.
  • I see homogenous materials exhibiting different physical and chemical properties at each end… or wherever else you wanted. Surfaces that change colour, texture, friction coefficient, refractive index, magnetic susceptibility or any one of —or combination of— any one of thousands of desired properties… inside or outside of them… like a television screen… except displaying an array –a matrix– of different properties. Metamaterials.
  • I see changes in materials’ physical, mechanical or chemical properties… triggered in response to… other changes… such as temperature, composition, acidity. Dynamic materials.
  • I see tyre compounds that become ‘grippier’ or ‘grow’ additional/deeper tyre tread patterns in the wet… according to the conditions. Responsive materials.
  • I see trees… by the side of road… that automatically display the speed limit… and any other desired road signals… with reflective bark… again… according to the conditions. Adaptive materials.
  • I see semi-organic ‘tentacles’ mounted on aircraft carriers… that can ‘catch’ helicopters and other flying craft… in mid flight. Organic materials.
  • I see termites… genetically reprogrammed… to make skyscrapers out of biodegradable ‘cement’. Self-organising materials,
  • I see buildings that simply… build themselves. Self-generating and self-regenerating materials.
  • I see computers that never need new hardware. Computers that truly ‘adapt’ and ‘learn’. Light-based computers. Organic computers. Really advanced, biological computers.
  • I see genetically engineered bacteria that can extract any elements we wish, from landfill.

All these devices are not only possible –100% scientifically feasible– but even probable. Believe me. You ain’t seen nothin’ yet. Of what technology can deliver.

These ‘inventions’ do not break any laws of science. Far from it. They’re already in existence. And this is the potential I see whenever I look at animals and plants and think about them in terms of their material properties.

Everywhere I look, I see nano-materials that humans simply cannot yet compete with. We are not even in the race, the same league, let alone the same competition as nature.

I see people mixing cement today, smelting and forging steel —still— in the year 2016. And it’s a crude process at its very best; always from the “top down” scale direction, never from the “bottom up”.

Eventually though, as we play the game of “catch up” —by studying and ultimately copying nature— there’s really only ONE thing that stands in the way of scientists, engineers and designers creating, reverse-engineering these things (and more) in the future.

And that’s the threat of extinction. Because all of the above hypothetical inventions share one thing in common: they’re based on materials that are already found in living systems.


Nature is good for our emotional, psychological and physiological wellbeing. Nature is ‘natural’. Nature is ‘pretty’. Nature is ‘beautiful’. And all species have an equal ‘right’ to survival as any other. Isn’t that enough reason to want to protect it?

We humans cannot recreate a forest, a mountain view, a lake, a river or a natural shoreline. And where do many of us like to go for recreation, if we want to truly rejuvenate? Where do we go on holidays? We go to nature. Or even to some virtual ‘approximation’ of it.

Shouldn’t that be enough to save it? Apparently not. So if you want the cold, hard ‘justification’, the main scientific reason, to fight for all forms of biodiversity –the fundamental reason that all accountants, long-term financial planners and investors are really looking for– then here it is:

Simply put: if we scientists don’t have enough living systems –biodiversity– available to effectively be able to research, to study, then not only will the amazing device described above never get built by us, but we’ll likely find it harder and harder to survive the further we get into the future1. Indeed, we may find that at one point, it doesn’t get any easier at all — rather, that it gets harder. Much harder.

Yes we NEED different species. Not just for our own immediate survival (in terms of oxygen/air, clean/filtered water, fresh food). We need different species in order to be able to study them well into the future. We need as many different species as possible. We need species with even the most subtle differences, –in fact, especially the ones with the most subtle differences– to be able to eliminate the bane of every single well-trained scientist: variables. Or rather, more than one variable.

Suppose there were only two animal species in existence: an elephant and a stingray. Suppose. Just the two (never mind what they eat for now). Then it would be very hard to work out which genes cause which morphology in each animal. How do we know which gene causes the trunk and which forms the tusk? How do we know which gene forms the stingray’s tail or its spine? And so on. For every new variable in each animal, it becomes ever harder to distinguish between the genes, which genes cause which traits.

With insufficient samples, science is nothing. What about with no samples at all? How much is science worth then, with no samples?

Furthermore, the exact same protein may lead to different morpholgy when it is located in a different part of the genetic sequence, as in a different species. It’s not entirely predictable.

That’s why genetic engineers are never as clever as they think they are. That’s why there’s this whole “anti GMO” movement (well that’s one reason). Because if we knew EXACTLY what we doing, why, we’d be able to create practically anything we wanted. Already. Now. Today. Besides, some genes are redundant.

Do we know which ones? Do we know why? Do we know where? Do we know how? Do we know, for each and every single one of the estimated 1 trillion fast-disappearing species on planet Earth? I don’t think so. Genetics is not my area. Even so, I don’t think there are enough scientists alive today to know and study all of that genetic information; there is too much information out there. I don’t know. I know about materials science, not biology. I do know that biological materials are several orders of magnitude more complex than purely synthetic, manmade materials. [Read more…]

Dear McDonalds,

November 28, 2016 — leslie dean brown

I can’t believe I have to do this…
Illustration by Leslie Dean Brown. © 2016. All rights reserved.
Illustration by Leslie Dean Brown. © 2016. All rights reserved.

Dear McDonalds,
we want a McSoy burger + McMushroom burger on the menu.
Signed, your future vegetarian/vegan customers.

[please click link to sign the petition]

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