ScienceDaily: Top Environment News

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• Biological transistor enables computing within living cells
• Mate choice in mice is heavily influenced by paternal cues, mouse study shows
• Proximity to coal-tar-sealed pavement raises risk of cancer, study finds
• Opposites attract: How cells and cell fragments move in electric fields
• Large robotic jellyfish could one day patrol oceans
• Getting under the shell of the turtle genome

Biological transistor enables computing within living cells Posted: 28 Mar 2013 11:24 AM PDT Bioengineers have taken computing beyond mechanics and electronics into the living realm of biology. Scientists have used a biological transistor made from genetic material -- DNA and RNA -- in place of gears or electrons. The team calls its biological transistor the "transcriptor."

Mate choice in mice is heavily influenced by paternal cues, mouse study shows Posted: 28 Mar 2013 09:53 AM PDT Hybrid offspring of different house mice populations show a preference for mating with individuals from their father's original population.

Proximity to coal-tar-sealed pavement raises risk of cancer, study finds Posted: 28 Mar 2013 09:52 AM PDT People living near asphalt pavement sealed with coal tar have an elevated risk of cancer, according to a new study. Much of this calculated excess risk results from exposures in children, age six or younger, to polycyclic aromatic hydrocarbons from the sealant.

Opposites attract: How cells and cell fragments move in electric fields Posted: 28 Mar 2013 09:51 AM PDT Like tiny crawling compass needles, whole living cells and cell fragments orient and move in response to electric fields -- but in opposite directions, scientists have found. Their results could ultimately lead to new ways to heal wounds and deliver stem cell therapies.

Large robotic jellyfish could one day patrol oceans Posted: 28 Mar 2013 09:48 AM PDT Researchers have unveiled Cyro, a life-like, autonomous robotic jellyfish the size and weight of a grown man, 5 foot 7 inches in length and weighing 170 pounds.

Getting under the shell of the turtle genome Posted: 28 Mar 2013 04:57 AM PDT The genome of the western painted turtle, one of the most widespread, abundant and well-studied turtles in the world, has been sequenced. The data show that, like turtles themselves, the rate of genome evolution is extremely slow; turtle genomes evolve at a rate that is about a third that of the human genome and a fifth that of the python, the fastest lineage analyzed.

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