Banner
Argument: President Trump Needs To Nationalize Health Care To Honor His Campaign Promise

You might think that after the November elections, the last group anyone will listen to for guidance...

Zika Linked To Miscarriages, Thin Brain Tissue In Babies

Zika virus can cross the placenta, intended to protect the developing fetus, and appears to lead...

Why Vegetable Farmers Aren't On Board The No-Till Train

No-till farming uses cover crops to conserve soil and suppress weeds but many vegetable producers...

False Positives Make Women More Likely To Delay Next Mammogram

Women who received a health scare in the form of a false positive result from a screening mammogram...

User picture.
News StaffRSS Feed of this column.

News Releases From All Over The World, Right To You... Read More »

Blogroll

The gravitational field surrounding the massive cluster of galaxies called Abell 68 acts as a natural lens in space to brighten and magnify the light coming from very distant background galaxies.

Like a fun house mirror, lensing creates a fantasy landscape of arc-like images and mirror images of background galaxies. The foreground cluster is 2 billion light-years away, and the lensed images come from galaxies far behind it.

In this photo, the image of a spiral galaxy at upper left has been stretched and mirrored into a shape similar to that of a simulated alien from the classic 1970s computer game "Space Invaders!" A second, less distorted image of the same galaxy appears to the left of the large, bright elliptical galaxy.

The first evidence for an extinct giant camel in Canada's High Arctic has been revealed. The discovery is based on 30 fossil fragments of a leg bone found on Ellesmere Island, Nunavut and represents the most northerly record for early camels, whose ancestors are known to have originated in North America some 45 million years ago. 

The fossils were collected over three summer field seasons (2006, 2008 and 2010) and are about three-and-a-half million years old, dating from the mid-Pliocene Epoch. Other fossil finds at the site suggest this High Arctic camel lived in a boreal-type forest environment, during a global warm phase on the planet.

How did the now extinct Falkland Islands wolf come to be the only land-based mammal there, when they islands are almost 300 miles from Argentina?.

Previous hypotheses floated the idea that the wolf somehow rafted on ice or vegetation, crossed via a now-submerged land bridge or was even semi-domesticated and transported by early South American humans.

Human embryonic stem cells still get all of the attention - a company in California might be able to do a clinical trial for an applied hESC treatment and it was in the news everywhere, but researchers at the University of Minnesota's Lillehei Heart Institute have shown why the un-controversial induced pluripotent stem cell technology may deserve it more. Researchers  have combined genetic repair with cellular reprogramming to generate stem cells capable of muscle regeneration in a mouse model for Duchenne Muscular Dystrophy (DMD). 

The nucleic and amino acids caught up in the infamous "selfish" segregation distorter (SD) saga may be just inanimate chemical compounds to most of us, but they have put on a soap opera for biologists since the phenomenon was discovered in fruit flies 50 years ago. 

When male flies make their sperm, the SD gene (call it "A") manages to rig meiosis — the specialized cell division that makes sex cells — so that maturing sperm that bear chromosomes with the susceptible allele (call that one "a") end up defective and discarded. They never even leave the testes. It is murder, of a sort. Similar selfish systems occur in mammals, including humans.

Remarkably well-preserved fossils of two crocodilians and a mammal previously unknown to science during recent Panama Canal excavations have led to discovering of new species.

The two new ancient, extinct alligator-like animals and an extinct hippo-like species inhabited Central America during the Miocene about 20 million years ago.  The fossils shed new light on scientists' understanding of species distribution because they represent a time before the formation of the Isthmus of Panama, when the continents of North and South America were separated by oceanic waters.