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.

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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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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The bizarre mating habits of flatworms

Microscopic image of <em>Macrostomum hystrix</em> shows the anterior eyes (1) in the head, followed by the paired testes (2), paired ovaries (3), developing eggs (4), the female genitalia containing three mature eggs (5), and the male genital region in the tail of the worm (6).Failing to find a mating partner is a dent to the reproductive prospects of any animal, but in the flatworm species Macrostomum hystrix it might involve a real headache. Zoologists...

Spiky monsters: New species of 'super-armored' worm discovered

This is <i>Collinsium ciliosum</i>, a Collins' monster-type lobopodian from the early Cambrian Xiaoshiba biota of China.A new species of 'super-armoured' worm, a bizarre, spike-covered creature which ate by filtering nutrients out of seawater with its feather-like front legs, has been identified by palaeontologists. The creature,...

Report: Careers outside of academia are richly rewarding for Ph.D. physicists

This image shows typical PhD physicists salaries by career type, 2011, 10 &shy;to 15
years after getting their degree. The data shows middle 50 percent of respondents.When asked to picture someone with a PhD in physics, most people probably envision an academic in a lab -- and not, say, a CEO or a financial analyst. In...

His and her pain circuitry in the spinal cord

New research released today in Nature Neuroscience reveals for the first time that pain is processed in male and female mice using different cells. These findings have far-reaching implications for...

Humans across the world dance to the same beat

This is a group of shishi-odori deer dancers, Japanese folk performing artists who sing, drum and perform acrobatic dancing.A new study carried out by the University of Exeter and Tokyo University of the Arts has found that songs from around the world tend to share features, including a...

A tale of 2 (soil) cities

A soil sample with the remains of plant leaves after three weeks inside the sample. The leaf is shown in green. In gray are the mycelia of fungi consuming the leaf.As we walk along a forest path, the soil beneath our feet seems like a uniform substance. However, it is an intricate network of soil particles, pores, minerals, soil microbes,...

Liquids on fibers -- slipping or flowing?

Thin fibers play a tremendous role in many areas of our daily life, from the use of glass fibers in ultra-fast data transmission to textile fibers in our clothing. In...

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A deep, dark mystery

The Newport-Inglewood fault was responsible for the 4.9 magnitude Inglewood earthquake in 1920 and the 6.4 magnitude Long Beach earthquake in 1933.UC Santa Barbara geologist Jim Boles has found evidence of helium leakage from the Earth's mantle along a 30-mile stretch of the Newport-Inglewood Fault Zone in the Los Angeles Basin....

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...

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...

Human brain study by UCLA and UK researchers sheds light on how new memories are formed

Brain forming new associations.In the first study of its kind, UCLA and United Kingdom researchers found that neurons in a specific brain region play a key role in rapidly forming memories about every...

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New nanogenerator harvests power from rolling tires

Xudong Wang has developed a new way to harvest energy from rolling tires.Madison engineers and a collaborator from China have developed a nanogenerator that harvests energy from a car's rolling tire friction.

Seafaring spiders depend on their 'sails' and 'anchors'

Linyphiid spider sailing using legs is shown.Spiders travel across water like ships, using their legs as sails and their silk as an anchor, according to research published in the open access journal BMC Evolutionary Biology. The...

Freshwater and ocean acidification stunts growth of developing pink salmon

This image shows measuring the oxygen consumption of developing pink salmon.Pink salmon that begin life in freshwater with high concentrations of carbon dioxide, which causes acidification, are smaller and may be less likely to survive, according to a new study...

Key element of human language discovered in bird babble

This is a chestnut-crowned babbler.Stringing together meaningless sounds to create meaningful signals was previously thought to be the preserve of humans alone, but a new study has revealed that babbler birds are also able...

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NASA explains why June 30 will get extra second

The day will officially be a bit longer than usual on Tuesday, June 30, 2015, because an extra second, or "leap" second, will be added.

Fingerprinting our sense of smell

The olfactory fingerprint of the person in the middle remains consistent, even after 30 days (right), but is very different from that of another person (left).Each of us has, in our nose, about six million smell receptors of around four hundred different types. The distribution of these receptors varies from person to person - so...

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Sleep deprivation could reduce intrusive memories of traumatic scenes

A good night's sleep has long been recommended to those who have experienced a traumatic event. But an Oxford University-led study provides preliminary experimental work suggesting it could actually be...

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UT Arlington team develops new storage cell for solar energy storage, nighttime conversion

Dong Liu (left), Zi Wei (center) and Fuqiang Liu, an assistant professor in the UT Arlington Materials Science and Engineering Department are shown.A University of Texas at Arlington materials science and engineering team has developed a new energy cell that can store large-scale solar energy even when it's dark.

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