Posts Tagged 'biology'

Do Plants Poop?

According to Popular Science –

So as long as you think of pooping in general terms, plants do it! They also do things like breathing, sweating, peeing, and even farting. Who knew?

Read the entire article HERE.

Many Errors In Scientific Papers Blamed On Excel’s AutoCorrect

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According to Slate –

Excel is partially responsible for errors in 20 percent of scientific papers dealing with genes, according to a new study. In an effort to “raise awareness of the problem,” three scientists published findings that suggest one-fifth of all scientific papers about genes contain detrimental typos due to an Excel default setting that converts gene names to dates or numbers.

Continue reading HERE.

 

Scientists Grow A Rat’s Leg In A Petri Dish

ratlegAccording to the Washington Post –

Harald Ott, a researcher and thoracic surgeon at Massachusetts General Hospital, is the proud parent of the world’s first lab-grown biolimb — a living, functioning, artificial leg that responds to stimuli and even circulates blood,  the hospital announced Tuesday. Though it’s still a long way off from made-to-order transplants for humans, Ott and other regeneration experts say that the tiny pink rat leg is a step toward the future of artificial limbs.

Continue reading HERE.

 

Killer Sponges

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NationalGeographic.com reported –

There are about 8,500 species of sponges, a type of simple, mostly stationary invertebrate, and the vast majority passively filter their food on the seafloor. But in the past two decades, scientists have found 7 species of carnivorous sponges that attack prey—and the new discoveries bump that number to 11, said Lonny Lundsten, a biologist at the Monterey Bay Aquarium Research Institute.

Continue reading HERE.

How Birds Really See the World [video]

Pacific Leaping Blenny – The Fish That Doesn’t Swim

PacificLeapingBlennyAccording to Sci-News –

The Pacific leaping blenny is a 4 to 8-cm-long tropical fish found in reefs in Samoa and the Marianas, Society, and Cook Islands, in the western and southern Pacific Ocean. It remains on land all its adult life but has to stay moist to be able to breathe through its gills and skin.

Continue reading HERE

Scientists Discover Oldest Living Animal (and kill it)

MingClam260x320CBS News reports –

A group of researchers working in Iceland in 2006 discovered a really old clam. They wanted to figure out just how old it could be, so they decided to open it up and count the growth rings along the clam’s hinge ligament. They got their answer — and it was shocking. They said the clam was 405 years old. They’d found the oldest living animal in the world (excluding primitive metozoans). Only, it wasn’t living anymore, because opening it up had killed the clam. And little did they know, their measurement was wrong. Ming the clam was an entire century older than they first calculated. They recently measured again. And now they say it was actually 507 years old.

continue reading HERE

 

Guppies – Zombie Studs Of Nature

guppy-sAccording to Science Daily –

June 12, 2013 — Performing experiments in a river in Trinidad, a team of evolutionary biologists has found that male guppies continue to reproduce for at least ten months after they die, living on as stored sperm in females, who have much longer lifespans (two years) than males (three-four months). Reznick explained that male guppies are brightly colored and very variable in coloration. Females prefer males with rare color patterns. A dead male with a long-lost color pattern can later give birth to a son who can now be preferred by females because he is different from all other males in the population. Because some females live so long, those sons can appear more than two generations after the father’s death.

Read more HERE

 

Scientists Resurrect Extinct Frog Species

Popular Science reports –

In 1983, the world lost one of its weirdest frogs. The gastric-brooding frog, native to tiny portions of Queensland, Australia, gave birth through its mouth, the only frog to do so (in fact, very few other animals in the entire animal kingdom do this–it’s mostly this frog and a few fish). It succumbed to extinction due to mostly non-human-related causes–parasites, loss of habitat, invasive weeds, a particular kind of fungus. There were two subspecies, the northern and souther gastric-brooding frog, and they both became extinct in the mid-80s sometime. Except–what if they didn’t?

gastric-brooding-frog-sTaking place at the University of Newcastle, the quest to revive the gastric-brooding frog became known as the Lazarus Project. Using somatic-cell nuclear transfer (SCNT), a method for cloning, the project has achieved the major step forward of creating an early embryo of the extinct frog. Essentially, they found a related frog–the great barred frog, which also lives in Queensland and has cool eye markings, like it’s wearing sunglasses–deactivated its eggs, and replaced them with eggs taken from the extinct frog. Even though the gastric-brooding frog has been extinct for decades, it’s possible to do this because individual specimens were kept preserved in, believe it or not, everyday deep freezers. When going through somatic-cell nuclear transfer, the eggs began to divide and form into the early embryo stage. The embryos didn’t survive much longer than that, but it was confirmed that these embryos contain genetic information from the gastric-brooding frog–that yes, in fact, they have brought it back to life. The researchers are confident that this is a “technical, not biological” problem at this stage to breed gastric-brooding frogs to adulthood. This is a big step forward for the worldwide attempts to revive extinct animals–the Lazarus Project researchers will soon meet with those working to revive the woolly mammoth, dodo, and other extinct beasties to share what they’ve learned. Oh, and in case you were wondering: the gastric-brooding frog lays eggs, which are coated in a substance called prostaglandin. This substance causes the frog to stop producing gastric acid in its stomach, thus making the frog’s stomach a very nice place for eggs to be. So the frog swallows the eggs, incubates them in her gut, and when they hatch, the baby frogs crawl out her mouth. How delightfully weird!

original source

 

Scientists Create Living Laser From Human And Jellyfish Cells

Nature.com reports –

Building a laser requires two things: a lasing material that amplifies light from an external source (a ‘gain medium’) and an arrangement of mirrors (an ‘optical cavity’), which concentrates and aligns the light waves into a tight beam. Until now, the gain medium has only been made from non-biological substances such as doped crystals, semiconductors or gases, but in this case the researchers used enhanced green fluorescent protein (GFP) — the substance that makes jellyfish bioluminescent, which is used extensively in cell biology to label cells. The team engineered human embryonic kidney cells to produce GFP, then placed a single cell between two mirrors to make an optical cavity just 20 micrometres across. When they fed the cell pulses of blue light, it emitted a directional laser beam visible with the naked eye — and the cell wasn’t harmed. The width of the laser beam is “tiny” and “fairly weak” in its brightness compared to traditional lasers, says Yun, but “an order of magnitude” brighter than natural jellyfish fluorescence, with a “beautiful green” colour.

Continue reading HERE.

 

Facts About Farts

Many informative (maybe) facts about farts, all on one graphic, such as ‘hydrogen sulfide is the reason farts smell’.

Click HERE to go there.

15 Interesting Facts About The Human Body

15 Interesting Facts About The Human Body in one graph.

Go THERE.


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