julia leffingwell

280 Flips | 2 Magazines | 2 Likes | 1 Follower | @julia0015 | Keep up with julia leffingwell on Flipboard, a place to see the stories, photos, and updates that matter to you. Flipboard creates a personalized magazine full of everything, from world news to life’s great moments. Download Flipboard for free and search for “julia leffingwell”

400-Year-Old Embalmed Hearts Found Under French Convent

Four hundred years after they were buried in heart-shaped lead urns, five embalmed human hearts have been discovered in a cemetery in northwestern …

Nerve Cell Regeneration In Hippocampus Can Prevent Memory Loss

New research released from the University of Florida suggests the production of new nerve cells within the Hippocampus could prevent memory loss and …

A Scientist Is Taking A Stand After She Was Banned From A Conference For Being Pregnant

"It seems we still have a long way to go to achieve genuine gender equality."<p>"I get back to you because after a reflexion <i>[sic]</i> our colleagues from the European Commission are not very enthusiastic to take a risk for your health making you travel to Brussels at the late stage of your pregnancy," the …

Ancient viruses are alive in humans and crucial for life, says Stanford University

The human genome is littered with sequences left behind from long-ago viral infections but now scientists have found the code is still active<p>Ancient viruses were critical to the evolution of humans and infections left genetic code in our bodies which is still essential for life today, Stanford …

Genetics

'Anti-malarial mosquitoes' created using controversial genetic technology

Scientists aim to tackle malaria by creating insects unable to spread the parasite, but caution urged over unpredictable ecological consequences<p>Hundreds of genetically modified mosquitoes that are incapable of spreading the malaria parasite to humans have been created in a laboratory as part of a …

A mass extinction once replaced giant fish with tiny ones—and it could be happening all over again

When big fish that dominate the seas suddenly disappear, small fish take over—and stay on top for hundreds of millions of years. At least, that’s what happened after a mass extinction some 359 million years ago. Thanks to overfishing, scientists worry it could be happening again.<p>That grim …

Extinction

Centuries-old Incan mummy's DNA reveals untold story of ancient lineage

Sequenced genome of boy who was sacrificed by the Inca 500 years ago points to extent of genetic diversity in the Andes before the Spanish arrived<p>Archaeologists and geneticists have sequenced the genome of a boy sacrificed 500 years ago during an Incan ritual in the Andes, finding a previously …

DNA from Inca boy sacrificed 500 years ago shows how humans spread to South America

It sounds like something straight out of a "Hunger Games" novel: The rulers of a sprawling empire select beautiful children from throughout their vast territories and kill them in a ritualistic event to reinforce their power.<p>During the Inca civilization, which thrived in South America before the …

Anthropology

Scans Reveal Strange Warm Spot At Giza Pyramid

Probably not grain storage...or a Stargate<p>There's a lot we know about the iconic Pyramids at Giza. We know they were built thousands of years ago to hold royal mummies and grave goods (not grain). The pyramids were likewise not the home/landing site/temples of aliens dead set on taking over …

Archaeology

STI known as MG could have infected hundreds of thousands in UK

Study finds further evidence <i>Mycoplasma genitalium,</i> which has few symptoms, is sexually transmitted and may be present in 1% of adults under 45<p>A sexually transmitted infection could have infected hundreds of thousands of people in the UK, research suggests.<p><i>M</i><i>ycoplasma genitalium</i>, known as MG, has …

Public Health

Neanderthals ‘kept our early ancestors out of Europe’

Ancient teeth found in China suggest Homo sapiens was outwitted by its rivals<p>The discovery of a hoard of ancient human teeth in a Chinese cave has forced scientists to reconsider our species’ relations with our closest evolutionary cousins, the Neanderthals. The find, revealed in the science …

Anthropology

Bacteria With Synthetic DNA Create Protein Never Found In Nature

For when the usual four nucleotides can’t give you what you want<p>Your DNA, like that of everything else on the planet, is made of four nucleotides: A, C, G, and T. These are like a blueprint that your body reads to produce 20 different amino acids, which combine to make up the proteins that enable …

Protein

Tiny, Sophisticated Human Brain Grown In A Dish

It’s as advanced as the brain of a five-week-old fetus<p>Researchers from Ohio State University have made the most sophisticated lab-grown brain yet, according to results presented yesterday at the 2015 Military Health System Research Symposium. It could provide a new way to understand how genes and …

How Neanderthal DNA Affects Your Genome

Ancient members of our species had sex with Neanderthals. That lineage contributes to 1–3% of the DNA in almost everyone outside of sub-Saharan …

Has Earth ever had more than one moon?

You might feel a bit left out here on Earth with only one moon while Saturn has 62, but have we ever had any more?<p>No observations or theoretical …

Astronomy

An asteroid didn't wipe out ichthyosaurs — So, what did?

During the dinosaur age, ichthyosaurs — large marine reptiles that look like dolphins — flourished in prehistoric oceans, living in all kinds of watery environments near and far from shore. But as competition in these areas grew, ichthyosaurs lost both territory and species before gradually going …

Native American origins: When the DNA points two ways

This week, two teams of scientists released reports detailing the origins of Native American peoples. Both groups looked at ancient and modern DNA to attempt to learn more about the movements of populations from Asia into the New World, and about how groups mixed once they got here. Both discovered …

Anthropology

The Six Weirdest Ancient Roman Ideas About The Human Body

Given our 21st century understanding of medicine, in which scientists can grow or 3D print new organs, the ancient Romans may seem fantastically clueless about human anatomy and disease. But until Anders Vesalius revolutionized the study of anatomy in the 16th century, Western medicine was …

Ancient History

This rhino's death brings species down to final 4

The species was down to its last six members last fall. Then there were five. Now, with the death of a northern white rhino in a Czech zoo, there are just four of the animals left in a species already past the point of no return.<p>Nabire, a 31-year-old female, died Monday in the same zoo where she …

Sex life of ancient Fractofusus organism revealed

<b>One of the earliest complex organisms had a surprisingly complicated sex life, scientists say.</b><p>Until now, little was known about the biology of <i>Fractofusus,</i> which lived in the ocean 565 million years ago.<p>But new research has revealed a dual mode of reproduction. In one method, the organism sprouted …

Biology

Ancient Egyptian underwater treasures to be exhibited for the first time

Artefacts discovered amid submerged ruins of cities of Thonis-Heracleion and Canopus to be unveiled in major Paris exhibition<p>Spectacular ancient Egyptian treasures are to be exhibited for the first time having been discovered underwater in the submerged ruins of the near-legendary cities of …

Life's big surprises: The Vital Question and Life's Greatest Secret

Two recent books dive into the mysteries surrounding the origins of life and the genetic code and come up with deeply satisfying tales filled with tenacious arguments and bold ideas<p>Summer is here and brings for many a welcome opportunity to spend time on the beach immersed in the pages of a good …

Genetics

Outstanding Jurassic Fossils Rediscovered After More Than 100 Years

Some of the greatest English fossils found in the 19th Century have been rediscovered. Sadly the site where they were located is now inaccessible, …

Fossils

The big comeback: it's time to declare victory for Australian humpback whale conservation

When it comes to conservation, good news is pretty thin on the ground – and the ocean, for that matter. We have grown much more used to hearing about …

Coral Reefs: The Ocean’s Treasure

(Photo Credit: Swim For The Reef)<p><b>Why do we need to protect coral reefs?</b><p>Simply put, coral reefs are some of the most diverse and extremely valuable …

Post Dinosaur Extinction: Fish, Not Mammals, Dominated

Sixty-six million years ago, a massive asteroid struck Mexico's Yucatán Peninsula. As a result, the Earth changed forever, spelling the end of the …

Giant squid caught on film by Russian sailors - Unexplained Mysteries

The huge cephalopod tried to feed on a fish the sailors had caught. Image Credit: YouTube / LiveLeak<p>The crew of a fishing vessel recorded a huge …

Whale Researchers Document a Rare and Stunning Display of Orcas in the Wild (VIDEO)

Few wildlife encounters are quite as breathtaking as that of a wild whale sighting – which is why this team of marine biologists from the Center for …