Sammy Lokorodi, a resident of Kenya's northwestern desert who works as a fossil and artifact hunter, led the way to a trove of 3.3 million-year-old tools.

Lethal wounds on skull may indicate 430,000-year-old murder

This is a frontal view of Cranium 17 showing the position of the traumatic events T1 (inferior) and T2 (superior).Lethal wounds identified on a human skull in the Sima de los Huesos, Spain, may indicate one of the first cases of murder in human history, some 430,000 years ago,...

Deepwater Horizon oil spill contributed to high number of Gulf dolphin deaths

This is one of the stranded dead dolphins that came ashore in 2012 along the Louisiana coast being photographed for study.As part of an unusual mortality event investigation, a team of scientists has discovered that dead bottlenose dolphins stranded in the northern Gulf of Mexico since the start of the...

Holy agility! Keen sense of touch guides nimble bat flight

A brown bat in flight maneuvers in search of prey.Bats fly with breathtaking precision because their wings are equipped with highly sensitive touch sensors, cells that respond to even slight changes in airflow, researchers have demonstrated for the first...

Astronomers unveil the farthest galaxy

The galaxy EGS-zs8-1 sets a new distance record. It was discovered in images from the Hubble Space Telescope's CANDELS survey.An international team of astronomers led by Yale University and the University of California-Santa Cruz have pushed back the cosmic frontier of galaxy exploration to a time when the universe...

Paleontologists discover the first dinosaur fossil in Washington State

Stereopairs of UWBM 95770 in posterior (A), anterior (B) view. Proximal view (C) of UWBM 95770, with arrow indicating anterior direction. Silhouette of complete theropod femur (D) based on the tyrannosaurid Daspletosaurus torosus (TMP 2001.36.01), with corresponding portion of UWBM 95770 highlighted. Abbreviations: 4tr, fourth trochanter; in, matrix infilling of hollow marrow cavity.The fossils of the first dinosaur fossil from Washington State were collected along the shores of Sucia Island State Park in the San Juan Islands, and described in a study...

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The Pillars of Creation revealed in 3-D

This visualization of the three-dimensional structure of the Pillars of Creation within the star formation region Messier 16 (also called the Eagle Nebula) is based on new observations of the object using the MUSE instrument on ESO's Very Large Telescope in Chile. The pillars actually consist of several distinct pieces on either side of the star cluster NGC 6611. In this illustration, the relative distance between the pillars along the line of sight is not to scale.Using the MUSE instrument on ESO's Very Large Telescope (VLT), astronomers have produced the first complete three-dimensional view of the famous Pillars of Creation in the Eagle Nebula, Messier 16....

International team discovers elusive new bird in China

A Michigan State University professor was part of an international team of scientists that has discovered a new bird in China -- the Sichuan bush warbler.A Michigan State University professor was part of an international team of scientists that has discovered a new bird in China.

Ethiopian and Egyptian genomes help map early humans' route out of Africa

225 human genome sequences from Ethiopians and Egyptians point to a Northern exit out of Africa as the most likely route by the ancestors of all Eurasians.Although scientists are confident that all modern human populations can trace their ancestry back to Africa, the route taken out of Africa is still unclear. New genomic analyses of people...

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Mobile phone video microscope automates detection of parasites in blood

This is a schematic of the CellScope Loa device, a mobile phone-based video microscope. The device includes a 3-D-printed case housing simple optics, circuitry and controllers to help process the sample of blood. CellScope Loa can quantify levels of the Loa loa parasitic worm directly from whole blood in less than 3 minutes.A research team led by engineers at the University of California, Berkeley, has developed a new mobile phone microscope that uses video to automatically detect and quantify infection by parasitic...

Study finds high risk of sleep apnea in young veterans with PTSD

A new study of young U.S. veterans shows that the probability of having a high risk of obstructive sleep apnea (OSA) increased with increasing severity of post-traumatic stress disorder (PTSD)...

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New human ancestor species from Ethiopia lived alongside Lucy's species

Cleveland . . . A new relative joins "Lucy" on the human family tree. An international team of scientists, led by Dr. Yohannes Haile-Selassie of The Cleveland Museum of Natural History, has discovered a 3.3 to 3.5 million-year-old new human...

Our bond with dogs may go back more than 27,000 years

This image compares an ancient Taimyr Wolf bone from the lower jaw to a modern pipette.Dogs' special relationship to humans may go back 27,000 to 40,000 years, according to genomic analysis of an ancient Taimyr wolf bone reported in the Cell Press journal Current Biology...

Giant panda gut bacteria can't efficiently digest bamboo

It's no wonder that giant pandas are always chewing and eating, say Chinese researchers: their gut bacteria are not the type for efficiently digesting bamboo.

Sudden onset of ice loss in Antarctica detected

A group of scientists, led by a team from the University of Bristol, UK has observed a sudden increase of ice loss in a previously stable region of Antarctica. ...

Scientists announce top 10 new species for 2015

New species of pufferfish, Torquigener albomaculosus: A male (right) biting on the left cheek of a female while they were spawning.A cartwheeling spider, a bird-like dinosaur and a fish that wriggles around on the sea floor to create a circular nesting site are among the species identified by the SUNY...

Long-term galactic cosmic ray exposure leads to dementia-like cognitive impairments

'This is not positive news for astronauts deployed on a two- to three-year round trip to Mars,' said Charles Limoli, a professor of radiation oncology in UCI's School of Medicine.What happens to an astronaut's brain during a mission to Mars? Nothing good. It's besieged by destructive particles that can forever impair cognition, according to a UC Irvine radiation oncology...

Caltech astronomers observe a supernova colliding with its companion star

This is a still from a simulation of a Type Ia supernova. In the simulation, a Type Ia supernova 
explodes (dark brown color). The supernova material is ejected outwards at a velocity of
about 10,000 km/s. The ejected material slams into its companion star (light blue). Such a
violent collision produces an ultraviolet pulse which is emitted from the conical hole carved out by the companion star.Type Ia supernovae, one of the most dazzling phenomena in the universe, are produced when small dense stars called white dwarfs explode with ferocious intensity. At their peak, these supernovae...

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MESSENGER reveals Mercury's magnetic field secrets

Catherine Johnson is a University of British Columbia planetary scientist.New data from MESSENGER, the spacecraft that orbited Mercury for four years before crashing into the planet a week ago, reveal that Mercury's magnetic field is almost four billion years...

Programming probiotics for early detection of liver cancer metastases

Scientists at the University of California, San Diego and the Massachusetts Institute of Technology (MIT) have described a new method for detecting liver cancer metastases in mice. The approach uses...

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Gigantic whales have stretchy 'bungee cord' nerves

This is a segment of a tongue nerve at its initial length prior to being stretched. The nerve has been manually stretched to more than twice its initial length until it abruptly resists further extension.University of British Columbia (UBC) researchers have discovered a unique nerve structure in the mouth and tongue of rorqual whales that can double in length and then recoil like a...

Geochemical process on Saturn's moon linked to life's origin

Dramatic plumes, both large and small, spray water ice and vapor near the south pole of Saturn's moon Enceladus. This two-image mosaic is one of the highest resolution views acquired by Cassini during its imaging survey of the geyser basin capping the southern hemisphere of Saturn's moon Enceladus. It is provided courtesy of NASA/JPL/Space Science Institute.New work from a team including Carnegie’s Christopher Glein has revealed the pH of water spewing from a geyser-like plume on Saturn’s moon Enceladus. Their findings are an...