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Bioscience News
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Today's biological science headlines from the sources selected by our team:

Genetics reveals where emperor penguins survived the last ice age
A study of how climate change has affected emperor penguins over the last 30,000 years found that only three populations may have survived during the last ice age, and that the Ross Sea in Antarctica was likely the refuge for one of these populations. The Ross Sea is likely to have been a shelter for emperor penguins for thousands of years during the last ice age, when much of the rest of Antarctica was uninhabitable due to the amount of ice. The findings suggest that while current climate conditions may be optimal for emperor penguins, conditions in the past were too extreme for large populations to survive.
Plants & Animals News -- ScienceDaily, Sun, 01 Mar 2015 22:59:58 GMT

Psychology of food choice: Challenging the status quo
Researchers are challenging conventional beliefs about the effectiveness of traditional strategies for encouraging healthy eating. Researchers tackle issues such as the harmfulness of weight-stigma, encouraging healthy choices, and strategies to help children and teens.
Plants & Animals News -- ScienceDaily, Sun, 01 Mar 2015 22:59:58 GMT

First detailed microscopy evidence of bacteria at the lower size limit of life
Scientists have captured the first detailed microscopy images of ultra-small bacteria that are believed to be about as small as life can get. The existence of ultra-small bacteria has been debated for two decades, but there hasn't been a comprehensive electron microscopy and DNA-based description of the microbes until now. The cells have an average volume of 0.009 cubic microns (one micron is one millionth of a meter). About 150 of these bacteria could fit inside an Escherichia coli cell and more than 150,000 cells could fit onto the tip of a human hair.
Plants & Animals News -- ScienceDaily, Sun, 01 Mar 2015 22:59:58 GMT

Genetics reveals where emperor penguins survived the last ice age
(University of Southampton) A study of how climate change has affected emperor penguins over the last 30,000 years found that only three populations may have survived during the last ice age, and that the Ross Sea in Antarctica was likely the refuge for one of these populations.
EurekAlert! - Biology, Sun, 01 Mar 2015 22:59:58 GMT

Enhancing studies on a possible blood biomarker for traumatic brain injury
(NYU Langone Medical Center / New York University School of Medicine) New technology being introduced at NYU Langone Medical Center could help researchers advance blood biomarker capabilities that show changes in low concentrations of specific proteins present following a neurological injury.
EurekAlert! - Biology, Sun, 01 Mar 2015 22:59:58 GMT

First detailed microscopy evidence of bacteria at the lower size limit of life
(DOE/Lawrence Berkeley National Laboratory) Scientists have captured the first detailed microscopy images of ultra-small bacteria that are believed to be about as small as life can get. The research was led by scientists from Berkeley Lab and the University of California, Berkeley. The existence of ultra-small bacteria has been debated for two decades, but there hasn't been a comprehensive electron microscopy and DNA-based description of the microbes until now.
EurekAlert! - Biology, Sun, 01 Mar 2015 22:59:58 GMT

Aggressive plant fungus threatens wheat production

The spread of exotic and aggressive strains of a plant fungus is presenting a serious threat to wheat production in the UK, according to research published in Genome Biology. The research uses a new surveillance technique that could be applied internationally to respond to the spread of a wide variety of plant diseases.

Biology News Net, Sun, 01 Mar 2015 22:59:58 GMT

Fighting the Colorado potato beetle with RNA interference


Feeding experiment with different potato leaves: Detached leaves of unmodified plants were compared to plants with an altered chloroplast genome.
Colorado potato beetles are a dreaded pest of potatoes all over the world. Since they do not have natural enemies in most potato producing regions, farmers try to control them with pesticides. However, this strategy is often ineffective because the pest has developed resistances against nearly all insecticides. Now, scientists from the Max Planck Institutes of Molecular Plant Physiology in Potsdam-Golm and Chemical Ecology in Jena have shown that potato plants can be protected from herbivory using RNA interference (RNAi). They genetically modified plants to enable their chloroplasts to accumulate double-stranded RNAs (dsRNAs) targeted against essential beetle genes. (Science, February 2015).

Biology News Net, Sun, 01 Mar 2015 22:59:58 GMT

How mantis shrimp evolved many shapes with same powerful punch


Mantis shrimp attack their dinners with the help of spring-loaded claws.
DURHAM, N.C. -- The miniweight boxing title of the animal world belongs to the mantis shrimp, a cigar-sized crustacean whose front claws can deliver an explosive 60-mile-per-hour blow akin to a bullet leaving the barrel of a gun.

Biology News Net, Sun, 01 Mar 2015 22:59:58 GMT

Myanmar captures rare white elephant in western jungles
(AP)—Myanmar's forestry department has captured a rare white elephant in the jungles of the country's western Ayeyarwaddy region, an official said Sunday.
Phys.org: Biology News, Sun, 01 Mar 2015 22:59:58 GMT

Purring tempo, sliding notes grab cats' attention
Is there such a thing as cat-centric music, which is pleasing music to cats' ears?
Phys.org: Biology News, Sun, 01 Mar 2015 22:59:58 GMT

China's latest survey finds increase in wild giant pandas
(AP)—Wild giant pandas in China are doing well. According to a census by China's State Forestry Administration, the panda population has grown by 268 to a total of 1,864 since the last survey ending in 2003.
Phys.org: Biology News, Sun, 01 Mar 2015 22:59:58 GMT

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SciCentral picks

The top 5 resources
selected by our team
for biological science
news coverage:


EurekAlert!
rank:1
white line spacer BiologyNewsNet
rank:2
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Science Daily
rank:3
white line spacer The Scientist
rank:4
white line spacer BioSpace
rank:5
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