Early humans interbred with Neanderthals, Denisovans, and another, mysterious species

A new genome analysis study suggests that interbreeding between modern humans, Neanderthals, Denisovans and a mysterious archaic population was way more common than previously believed. A Lord of the Rings world Several decades ago, many anthropologists believed that humans, Neanderthals and Denisovans didn’t interbreed at all; as time passed, some evidence of this started popping out, and science acknowledged it,

Promiscuous female mice breed sexier male offspring. Research may help conservation efforts

University of Utah researchers found that female mice that live in a competitive social environment and choose to mate casually with multiple partners give birth to males who are much more attractive to female mice, at the cost of a dramatic cut in life expectancy however. You only have one life, says the sexy male mouse. The research is a

Going to the root of cancer fatality: metastasis

It’s not the cancer tumor itself that kills people, but rather the spread of cancer cells is what ultimately may bring the killing blow to patients. This is called metastasis, and oddly enough not nearly enough is known about how it works. University of Minnesota researchers have devised a pathological method for doctors to assess whether or not in lymph nodes

Kidney 3-d structures from human stem cells made for the first time

Scientists at the   Salk Institute for Biological Studies have for the first time coaxed   human stem cells into forming three-dimensional cellular structures similar to those found in our kidneys. The breakthrough could provide a valuable footing for upcoming work that might eventually lead to fully functioning lab-grown kidneys, based on patients’ own cells for bio-compatibility. In its current stage, lab-grown kidney-like

Study confirms IPCC’s 95% certainty on man made climate change

Global warming is real, it’s affecting us all, and it’s gonna get worse – and we have nobody to blame but ourselves. The IPPC report The Intergovernmental Panel on Climate Change (IPCC) is a scientific intergovernmental body with the purpose of providing ‘comprehensive scientific assessments of current scientific, technical and socio-economic information worldwide about the risk of climate change caused

Dinosaurs lived in low-oxygen world, amber shows

An international team of researchers led by Ralf Tappert, from the University of Innsbruck, reconstructed the composition of Earth’s atmosphere of the last 220 million years by analyzing modern and fossil plant resins. Their results indicate that atmospheric oxygen was considerably lower in Earth’s geological past than previously assumed – providing valuable information about current climate models, and questioning some

Evidence of granite found on Mars – Red Planet geology more complex than previously thought

Geologists have now found the most compelling evidence of granites on Mars – something which prompts more complex theories about the geology and tectonic activity on the Red Planet. Granites and basalts Granites are igneous rocks, pretty common on the surface of Earth. It is often called a ‘felsic’ (white rock) – because it is very rich in so-called white

Storing one bit per atom: more storage power and closer to quantum computers

There’s only so much you can cram into conventional magnetic storage devices. We’re already seeing these slowly, but surely lose ground in the face of solid-state drives, which offer more storage density and don’t have any moving parts (last longer, make no noise, etc.). What about even further ahead in the future? Well, it’s most likely that in the following

10,000-Year-Old Cave Paintings in Brazil Discovered by Accident

In quite an interesting discovery, Wildlife Conservation Society biologists have discovered cave paintings made by hunter-gatherers between 10,000 to 4,000 years ago while studying wild animals in the Taboco region. An unexpected find To add more mystery to the situation, the discovery was made in 2009, but it has been kept a secret until now – probably because they wanted

Viruses assemble key components for the lithium-air batteries of the future

In a synergy between biology and electrochemistry, researchers at MIT cleverly exploited genetically modified viruses to assemble metal molecules into extremely thin nanowires that can be used as cathodes in a lithium-air battery. This type of battery has been thoroughly researched in the past few years and has sparked the interest of scientists because of its tremendous potential to store

Oldest “big cat” fossil discovered is four millions years old

Paleontologists have unearthed skull fragments in Tibet belonging to an ancient “big cat” species, which apparently may be the oldest discovered thus far. The fossils have been dated between 4.1 and 5.95 million years old and belong to a previously unknown species “similar to a snow leopard”, according to US and Chinese palaeontologists. “This cat is a sister of living snow

Accidental exposure of crystal to light increases electrical conductivity 400 fold

A team of researchers at Washington State University achieved a dramatic 400 fold increase in electrical conductivity for a crystal after it was accidentally left exposed to light one day. This readings are attributed to photoconductivity, a phenomenon which causes a material to become more electrically conductive due to the absorption of electromagnetic radiation such as visible light, ultraviolet light, infrared

Brooke Greenberg, the toddler who never aged, dies at age 20

A few years ago ZME Science reported the peculiar case of Brooke Greenberg, a woman who was born prematurely at just four pounds but never physically developed into an adult. Her condition baffled her doctors as well as the scientific community who even to this day hasn’t managed to pinpoint what exactly was wrong with her. Twenty years after her

Stuxnet virus that crippled Iranian nuclear facility infects International Space Station

The world’s most complex malware ever created, the Stuxnet virus which was designed and enforced by the U.S. and Israel against Iran a few years ago, may have ended up infecting the International Space Station according to leading security analyst Eugene Kaspersky head of  IT security at Kaspersky Labs. The virus was designed to only attack specific software and specific hardware in

Evidence of 3.5-Billion-Year-Old Bacterial Ecosystems Found

To say that finding evidence of how life on Earth was 3.5 billion years ago is hard would be an understatement. Reconstructing the rise of life in its early stages is a monumental challenge – the evidence is only preserved in Earth’s oldest sedimentary rocks, and sedimentary rocks of that age are very hard to come by. However, a new

Monkey-Human ancestor developed music skills 30 million years ago

Music isn’t only restricted to humans – music skills evolved at least 30 million years ago in the common ancestor of humans and monkeys, claims a new study that tries to explain why for example chimps drum on tree roots and monkey calls sound like singing. It’s one of the big puzzles in biology and anthropology, and it’s one of

Acacia trees deal addiction to bodyguard ants

A strange evolutionary alliance between trees and the ants that guard them has a sinister explanation, a new study suggests, after studying ants hooked on nectar. Bodyguard ants and addiction In Central America, ants act as bodyguards for acacia trees, defending them not only from weeds, but also from animals, in exchange for accomodation and food – this has traditionally

Australia on track for warmest year ever

The past 12 months have been 0.22 degrees Celsius warmer than any other equivalent period prior to 2013, and Australia is steadily on track for the warmest year ever. Warmer and warmer A new Climate Council study, titled Off the Charts, says that the country has just had its warmest ever 12-month period, from 1 November 2012 to 31 October

Microwave harvester converts wireless energy into direct current with solar cell-like efficiency

Using a range of cheap materials arranged in a specific manner, researchers at Duke University have demonstrated a device that captures microwave signals, such as those relayed by WiFi or even satellites high up above in Earth’s orbit, an converts this free, lost energy into electrical current. The harvesting and conversion efficiency of the device is on par with currently

Biopatch stimulates bone growth via DNA instructions

You’ll be pretty impressed by this novel research. Scientists at  University of Iowa have developed an ingenious biopatch which expels nanoparticles containing DNA that instructs cells to turn into bone. Practically, you just apply this patch over a damaged area that needs reconstruction, dental surgery site or congenital bone defect and the genes do the rest of the job. Tests so far