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Tuesday, February 28, 2012

ScienceDaily: Strange Science News

ScienceDaily: Strange Science News


Immortal worms defy ageing

Posted: 27 Feb 2012 12:26 PM PST

Researchers have demonstrated how a species of flatworm overcomes the ageing process to be potentially immortal.

New fossil penguin from New Zealand may be the biggest ever

Posted: 27 Feb 2012 12:25 PM PST

After 35 years, a giant fossil penguin has finally been completely reconstructed, giving researchers new insights into prehistoric penguin diversity.

Study extends the 'ecology of fear' to fear of parasites

Posted: 27 Feb 2012 06:43 AM PST

The ecology of fear, like other concepts from predator-prey theory, also extends to parasites, new research suggests. Raccoons and squirrels would give up food, the study demonstrated, if the area was infested with larval ticks. At some level, they are weighing the value of the abandoned food against the risk of being parasitized.

Some bacteria attack using spring-loaded poison daggers

Posted: 27 Feb 2012 06:43 AM PST

Bacteria have evolved different systems for secreting proteins. One, called a type VI secretion system, is found in about a quarter of all bacteria with two membranes. Despite being common, researchers have not understood how it works. Now scientists have figured out the structure of the type VI secretion system apparatus and proposed how it might work -- by shooting spring-loaded poison molecular daggers.

Dental pulp stem cells transformed by 'bad breath’ chemical

Posted: 26 Feb 2012 07:59 PM PST

Japanese scientists have found that the odorous compound responsible for halitosis – otherwise known as bad breath – is ideal for harvesting stem cells taken from human dental pulp.

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