Kennewick Man closely related to Native Americans, geneticists say

DNA from the 8,500-year-old skeleton of an adult man found in 1996, in Washington, is more closely related to Native American populations than to any other population in the world, according to an international collaborative study conducted by scientists at...

An early European had a close Neandertal ancestor

DNA taken from a 40,000-year-old modern human jawbone reveals that this man had a Neandertal ancestor as recently as four to six generations back.Neandertals became extinct about 40,000 years ago but contributed on average one to three percent to the genomes of present-day Eurasians. Researchers have now analyzed DNA from a 37,000 to...

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First species of yeti crab found in Antarctica named after British deep-sea biologist

This is a male (larger crab) and female Yeti Crab <i>Kiwa tyleri</i> at Antarctic hydrothermal vents.The first species of Yeti Crab from hydrothermal vent systems of the East Scotia Ridge in the Southern Ocean, Antarctica, has been described by a team of British scientists.

Seahorse tails could inspire new generation of robots

The researchers designed this 3-D-printed model based on the design of a seahorse tail.Inspiration for the next big technological breakthrough in robotics, defense systems and biomedicine could come from a seahorse's tail, according to a new study reported Thursday in the journal Science.

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First live birth after transplantation of ovarian tissue frozen during childhood

This is Dr. Isabelle Demeestere, who led the research.A young woman has become the first in the world to give birth to a healthy child after doctors restored her fertility by transplanting ovarian tissue that had been removed...

NASA's Hubble sees a 'behemoth' bleeding atmosphere around a warm exoplanet

This artist's concept shows "The Behemoth," an enormous comet-like cloud of hydrogen bleeding off of a warm, Neptune-sized planet just 30 light-years from Earth. Also depicted is the parent star, which is a faint red dwarf named GJ 436. The hydrogen is evaporating from the planet due to extreme radiation from the star. A phenomenon this large has never before been seen around any exoplanet.Astronomers using NASA's Hubble Space Telescope have discovered an immense cloud of hydrogen dubbed "The Behemoth" bleeding from a planet orbiting a nearby star. The enormous, comet-like feature is about...

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Lefties are all right with kangaroos

This is an Eastern grey kangaroo manipulating food with one forelimb.Kangaroos prefer to use one of their hands over the other for everyday tasks in much the same way that humans do, with one notable difference: generally speaking, kangaroos are...

Stanford researcher declares that the sixth mass extinction is here

There is no longer any doubt: We are entering a mass extinction that threatens humanity's existence.

CU-Boulder-led study shows moon engulfed in permanent, lopsided dust cloud

The moon is engulfed in a permanent but lopsided dust cloud that increases in density when annual events like the Geminids spew shooting stars, according to a new study led...

Dagger-like canines of saber-toothed cats took years to grow

This partial fossilized jaw is from a baby <i>Smilodon fatalis</i>. At the time of the cat's death, one of its adult canines (inside, left) was erupting alongside the baby canine. The adult carnassial/shearing tooth (inside, right) can also be seen alongside the milk tooth.New research shows that the fearsome teeth of the saber-toothed cat Smilodon fatalis fully emerged at a later age than those of modern big cats, but grew at a rate...

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Rainbow of glowing corals discovered in depths of the Red Sea

The fluorescence of this <i>Lobophyllia</i> coral can change from green to red when exposed to violet light.Glowing corals that display a surprising array of colours have been discovered in the deep water reefs of the Red Sea by scientists from the University of Southampton, UK, Tel...

Some 212 million years ago, landscapes weren't all dinosaur-friendly: dry, hot, with wildfires.
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Rosetta spacecraft sees sinkholes on comet

This close-up image shows the most active pit, known as Seth_01, observed on the surface of comet 67P/Churyumov-Gerasimenko by the Rosetta spacecraft. A new study suggests that this pit and others like it could be sinkholes, formed by a surface collapse process similar to the way these features form on Earth.The European Space Agency's Rosetta spacecraft first began orbiting comet 67P/Churyumov-Gerasimenko in August 2014. Almost immediately, scientists began to wonder about several surprisingly deep, almost perfectly circular pits on the...

First comprehensive analysis of the woolly mammoth genome completed

The first comprehensive analysis of the woolly mammoth genome reveals extensive genetic changes that allowed mammoths to adapt to life in the arctic.The first comprehensive analysis of the woolly mammoth genome reveals extensive genetic changes that allowed mammoths to adapt to life in the arctic. Mammoth genes that differed from their counterparts...

Astronomers find best observational evidence of first-generation stars in the universe

This artist's impression shows CR7 a very distant galaxy discovered using ESO's Very Large Telescope. It is by far the brightest galaxy yet found in the early universe and there is strong evidence that examples of the first generation of stars lurk within it.Astronomers using the European Southern Observatory's Very Large Telescope (VLT) have discovered by far the brightest galaxy yet found in the early universe and found strong...

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A third of the world's biggest groundwater basins are in distress

Two new studies led by UC Irvine using data from NASA Gravity Recovery and Climate Experiment satellites show that civilization is rapidly draining some of its largest groundwater basins, yet...

Quenched glasses, asteroid impacts, and ancient life on Mars

Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) maps of modeled mineralogy (olivine in red; mafic glass in green; pyroxene in blue) projected over Context Camera (CTX) imagery.Quenched glasses formed by asteroid impacts can encapsulate and preserve biological material for millions of years on Earth, and can also serve as a substrate for microbial life. These impact...

Genetic discovery uncovers key tool for morphine production in poppies

Scientists at the University of York and GlaxoSmithKline (GSK) Australia have made a key genetic discovery in poppies, paving the way for more effective painkillers.

Staying cool: Saharan silver ants

Left: Sahara silver ants forage in the midday sun and look like droplets of mercury rolling on the desert surface. Right: The silvery appearance is created by a dense array of uniquely shaped hairs.Nanfang Yu, assistant professor of applied physics at Columbia Engineering, and colleagues from the University of Zürich and the University of Washington, have discovered two key strategies that enable Saharan...

Newly discovered 48-million-year-old lizard walked on water in Wyoming

A newly-discovered, 48-million-year-old fossil, known as a "Jesus lizard" for its ability to walk on water, may provide insight into how climate change may affect tropical species, according to a...

Backward-moving glacier helps scientists explain glacial earthquakes

The relentless flow of a glacier may seem unstoppable, but a team of UK and US researchers have shown that during some calving events - when an iceberg breaks off...

Vitamin D status related to immune response to HIV-1

Vitamin D plays an important part in the human immune response and deficiency can leave individuals less able to fight infections like HIV-1. Now an international team of researchers has...

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