Slime Molds And Intelligence

Slime Molds and Intelligence

Slime Molds And Intelligence

Okay, despite going into a biology related field, I only just learned about slime molds, and hang on, because it gets WILD.

This guy in the picture is called Physarum polycephalum, one of the more commonly studied types of slime mold. It was originally thought to be a fungus, though we now know it to actually be a type of protist (a sort of catch-all group for any eukaryotic organism that isn't a plant, animal, or a fungus). As protists go, it's pretty smart. It is very good at finding the most efficient way to get to a food source, or multiple food sources. In fact, placing a slime mold on a map with food sources at all of the major cities can give a pretty good idea of an efficient transportation system. Here is a slime mold growing over a map of Tokyo compared to the actual Tokyo railway system:

Slime Molds And Intelligence

Pretty good, right? Though they don't have eyes, ears, or noses, the slime molds are able to sense objects at a distance kind of like a spider using tiny differences in tension and vibrations to sense a fly caught in its web. Instead of a spiderweb, though, this organism relies on proteins called TRP channels. The slime mold can then make decisions about where it wants to grow. In one experiment, a slime mold was put in a petri dish with one glass disk on one side and 3 glass disks on the other side. Even though the disks weren't a food source, the slime mold chose to grow towards and investigate the side with 3 disks over 70% of the time.

Slime Molds And Intelligence

Even more impressive is that these organisms have some sense of time. If you blow cold air on them every hour on the hour, they'll start to shrink away in anticipation when before the air hits after only 3 hours.

Now, I hear you say, this is cool and all, but like, I can do all those things too. The slime mold isn't special...

To which I would like to point out that you have a significant advantage over the slime mold, seeing as you have a brain.

Yeah, these protists can accomplish all of the things I just talked about, and they just... don't have any sort of neural architecture whatsoever? They don't even have brain cells, let alone the structures that should allow them to process sensory information and make decisions because of it. Nothing that should give them a sense of time. Scientists literally have no idea how this thing is able to "think'. But however it does, it is sure to be a form of cognition that is completely and utterly different from anything that we're familiar with.

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On a jet black background, a bright spiral galaxy softly swirls with sprays of stars extending outward from a small, glowing yellow center. Another galaxy is beneath it and to the left, angling downward. This one is shaped almost like a pea pod with faded tendrils of stars extending from both ends. Together, the pair looks like a rose with the spiral galaxy forming the blossom and the elongated one forming the stem. A handful of large, bright stars speckle the background like sparkles. Credit: NASA, ESA, and G. Bacon, T. Borders, L. Frattare, Z. Levay, and F. Summers (Viz 3D team, STScI)

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On a backdrop speckled with tiny blue and yellow stars, an enormous heart-shaped nebula looms large. Clumps of dust and gas form intricate shapes, twisting around the edges of the “heart” and appearing to blow off the top in wisps so it almost appears to be on fire. The nebula is deep red and lit from within by a clump of bright blue-white stars. Credit: Brent Newton, used with permission

Celestial Conversation Hearts

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Other telescopes can see different types of light, and some detectors can even help us study cosmic rays, ghostly neutrinos, and ripples in space called gravitational waves.

A complicated conglomeration of stars is intertwined on a black backdrop. Two regions glow pale yellow, one at the lower left of the screen and one at the upper right. Each is surrounded with twisted streams of stars which come together near the center of the frame, making the pair of galaxies look almost like a set of angel wings. The region at the center is dark and dusty, and the galaxies glow blue-white with clumps and speckles of bright pink stars. Credit: NASA, ESA, and the Hubble HeritageTeam (STScI/AURA)-ESA/Hubble Collaboration; Acknowledgment: B. Whitmore (Space Telescope Science Institute)

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Cosmic Chemistry

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An animation that begins with two glowing white orbs spinning around each other ever faster as they move closer together until they appear to join together. Ripples appear around each of them. When they merge, the animation shifts to a zoomed out view that shows an explosion where two fiery orange jets extend out from the center in opposite directions. At the end of each jet, a large, glowing pink ball extends outward and grows larger, so that the whole thing appears like a giant dumbbell. Credit: NASA’s Goddard Space Flight Center/CI Lab

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This animation starts with a dim view of the Milky Way, which angles across the screen from the upper left to lower right. A tiny dark ball at the left grows larger as it moves closer until it briefly takes up most of the screen before passing away again to the right. The view shifts to follow its path and we see it as a rotating planet with brownish stripes. As it moves away, the dark world fades into the background. Credit: NASA/JPL-Caltech/R. Hurt (Caltech-IPAC)

Going Solo

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Anything with mass warps the fabric of space-time. So when an intervening object nearly aligns with a background star from our vantage point, light from the star curves as it travels through the warped space-time around the nearer object. The object acts like a natural lens, focusing and amplifying the background star’s light.

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On a black background, a white outline in the shape of a blocky rainbow contains a picture of a dusty nebula. It’s mottled brown, green, and blue and speckled with glowing pink stars. Channels of dust twist and curl around the edges of the frame, and at the center a small white box contains a much sharper image of part of the nebula. At the top of the blocky rainbow-like outline, it says, “With you, I see the bigger picture,” and underneath it says, “Love, Roman.” Credit: NASA’s Goddard Space Flight Center

Roman is nearly ready to set its sights on so many celestial spectacles. Follow along with the mission’s build progress in this interactive virtual tour of the observatory, and check out these space-themed Valentine’s Day cards.

Make sure to follow us on Tumblr for your regular dose of space!


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endless-bloomelle - Endlessly Blooming
Endlessly Blooming

"Endlessly blooming, even in the quiet seasons."29 - F - The Pyrenees, Spain.⋆。‧˚ʚ♡ɞ˚‧。⋆

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