June 12th, 2013 |
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Out in nature, you may notice that critters often like to be on top of one another, or inside one another. Of course, I’m talking about endo- and ectosymbioses (inside and on the surface, respectively). This is particularly true for microbes — perhaps because they are far more diverse and numerous. Furthermore, many organisms use [...]
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May 27th, 2013 |
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Giardia is a cute flagellate with two nuclei, eight flowing flagella and an impressive sucker plate that makes it look rather like a catfish. Their elegant swimming patterns are reminiscent of one as well. Giardia also lacks canonical mitochondria, instead harbouring highly reduced derivatives called mitosomes. Thus, it’s not particularly fond of oxygen — recall that [...]
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One night, when I was definitely completely sober in every way possible (of course!), it struck me that while both the European and Chinese zodiacs (ones I’m familiar with) display a nice variety of animals with and without backbones (I happen to be spineless according to the European one, and scaly and flame-breathing according to [...]
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A quickie post to assure y’all I’m still around. Got a few proper posts coming soon! Remember our testate amoeba friends, the arcellinids? Here is a pair of Arcellas (Arcellae?) in the midst of division. Organic tests(=”shells”) rust over time, as in they turn yellow and then brown with oxidation. Based on that, you can [...]
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Bleary-eyed and staggering, many of us partake in a morning coffee ritual before mustering the courage to face the daily workload. In addition to psychoactive chemicals (drugs, anyone?), the coffee routine provides structure and emotional support — rumours suggest it may be largely a placebo effect, but I won’t go into that debate. Instead, I [...]
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April 30th, 2013 |
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For me, the second more relaxing activity after microscopy is vector art. And then regular art. (This excludes non-activities, such as napping in the sun, and staring at life passing by. That’s all I’d do if one didn’t have to work — watch things.) Since I’m not often creative with my subject matter, the art [...]
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April 20th, 2013 |
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Seldom do protists show up in public places (as man-made creations; plenty of them thrive happily unseen), especially those who reside where the sun don’t shine: the hindgut of wood-eating termites and cockroaches. There, they perform a function glorious for the termite or roach, but often annoying (or devastating) to us — they digest cellulose [...]
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This Mayorella‘s (?) nucleus is smiling and wishing you a very happy day =) The auspicious pattern is formed by heterochromatin clumps. To the right of the nucleus is a contractile vacuole — devoid of any emotion this time. Cells do speak to you from time to time. In your head. Pareidolia is fun!
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April 13th, 2013 |
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I may have mentioned a few times to never mess with amoebae. Let me reiterate how lucky we are to be a few orders of magnitude of size removed from those creatures. Remember yesterday’s prey-stuffed ciliate, Frontonia? Well, while procrastinating and perusing random literature, I came across this title: “Observations on Amoeba Feeding on the [...]
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April 12th, 2013 |
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Frontonia are a large, gluttonous species of ciliates, which makes them a wonderful, colourful, subject of microphotography. Despite the modest appearance of their mouth, they can swallow some impressively big prey — the suture beneath the mouth can open to widen the engulfment. Essentially, the critter unstitches its belly to fit more in. Would be [...]
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