ADVERTISEMENT
  About the SA Blog Network

Posts Tagged "protists"

The Artful Amoeba

New Octopus-like Protists in Termite Guts Named for HP Lovecraft Cosmic Monster ‘Cthulhu’

Nerds have a particular fascination for the Cthulhu mythos of horror novelist and all-around-weird-guy H. P. Lovecraft. In Lovecraft’s stories, Cthulhu was a tentacle-faced titanic god-monster who slept in a mythic undersea lair called R’lyheh, dreaming of the day he could emerge to destroy humanity. Nerds hold the mythic being in high esteem and have [...]

Keep reading »
The Artful Amoeba

An Illustration of the Many Ways to Be Multicellular on Planet Earth

dictyostelium_aggregating_pd_200

How many ways are there to be multicellular on Earth? You know, organisms made of more than one cell? Let’s see . . . plants, animals, and fungi. Three, right? Wrong. I give you “Representative Diverse Origins of Multicellularity …”, aka, Fig. 1 from the paper “The Evolutionary-Developmental Origins of Multicellularity” in the January issue [...]

Keep reading »
The Artful Amoeba

Green Alga Found to Prey on Bacteria, Bolstering Endosymbiotic Theory

cymbomonas_bacteria_ingestion_current_biology_200

A green alga with throat- and stomach-like structures can swallow and digest bacteria when deprived of light, further bolstering Lynn Margulis’s widely accepted idea that the origin of the plant-powering chloroplast was a fortuitous bout of indigestion. Termed “Endosymbiotic Theory“, the idea is that early nucleated cells called eukaryotes ate bacteria that managed to escape [...]

Keep reading »
The Artful Amoeba

What Lives at the Bottom of the Mariana Trench? More Than You Might Think

foraminiferan_ammonia_tepida_wiki_cc_Scott_Fay_200

The deepest, darkest, scariest place on the maps I loved pondering as a child was a crescent-shaped canyon in the western Pacific Ocean. It was called the Mariana Trench, and at the very, very bottom was the lowest point on Earth’s surface, the Challenger Deep. Its floor was seven terrifying miles down. What was down [...]

Keep reading »
The Artful Amoeba

Cameron’s Team Divulges Discoveries in Deepest Trenches on Earth

xenophyophore_noaa_pd_200

It’s often said that we know less about the bottom of our own ocean than we do about the surface of Mars. The governments of the world, and our government in particular, seem presently much less than enthusiastic about exploring the oceans of our own planet than in exploring other planets (ocean research seems to [...]

Keep reading »
The Artful Amoeba

Solar-Powered Plankton Take Monty Python Advice: Run Away

heterosigma_akashiwo_diagram_wiki_pd_Hara_and_Chihara_200

At least gazelles can run. But if you’re a tree, a blade of grass, or a hapless kohlrabi, there’s nothing you can do when the choppers, nippers, or clippers of your predator — aka “grazer” — approach. Such is the fate of most photosynthetic organisms, which we landlubbers tend to think of as plants. But [...]

Keep reading »
The Artful Amoeba

Legionnaire’s Disease at the Luxor: What Causes It?

legionella_pneumophila_cdc_11151_200

In July 1976, a convention of members of the American Legion — a veterans’ group — was meeting in Philadelphia at the Belleville Stratford Hotel in honor of America’s bicentennial. Soon, 221 attendees would be sickened and 34 dead of an illness it was believed no one had ever seen before. Swine flu was suspected, [...]

Keep reading »
The Artful Amoeba

Proteus: How Radiolarians Saved Ernst Haeckel

radiolarian_Circogoniaicosahedra_haeckel_wiki

Ernst Haeckel had spent an unhappy year practicing medicine when his parents finally consented to pay for a year of scientific study and travel in Italy. It was 1859, and he was 25. He had discovered a passion for biology and a talent for art during his college years, but his parents had pushed for [...]

Keep reading »
The Artful Amoeba

The Brain-Eating “Amoeba” Strikes Again

Naegleria_fowleri_wiki_cdc_pd_200

Just when you thought the U.S. was safe from amoebas . . . it turns out it’s not. This summer saw a micro-burst of brain-eating amoeba attacks (well, only three, but that was plenty for the press to get its panties in a bunch over it. How could you not about “brain-eating amoebas”?) in people [...]

Keep reading »
The Artful Amoeba

Toxic Red Tides Can Attack By Air, Too

Karenia_brevis_wiki_pd_200

Last week as I sat in a beach-side open-air restaurant in southwest Florida, I started coughing. Hard. I couldn’t stop, and I apologized repeatedly. Yet I hadn’t felt sick before, and the suddenness of the coughing was very weird. Our waitress came by as I was expressing my bewilderment. She said, “Oh, it’s the red [...]

Keep reading »
Lab Rat

Exploring inside cells – in 3D!

Side by side - the electron micrograph and the finished model taken by the students (picture used with permission)

I got sent a wonderful story recently about a group of ten college students, from St Olaf college in Minnesota, who went on an electron microscopy course at the Boulder Laboratory for 3-D Electron Microscopy of the Cell in Colorado. As well as being shown the techniques and equipment in use, the students actually got a chance to use [...]

Keep reading »
Lab Rat

Half-plant, half-predator, all-weird

Hatena

Still on my honeymoon, far away from any form of internet, so this is another old post from my previous blog. The post itself is not one of the best I’ve written, but the subject matter was so fascinating I feel it needed reposting! This post came to light due to Captain Skellet (whose been around [...]

Keep reading »

More from Scientific American

Scientific American MIND iPad

Give a Gift & Get a Gift - Free!

Give a 1 year subscription as low as $14.99

Subscribe Now >>

X

Email this Article

X