ScienceDaily: Top Environment News

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• Study: Autophagy predicts which cancer cells live, die when faced with anti-cancer drugs
• Life scientists, colleagues differentiate microbial good and evil
• Climate changes distribution of plants, animals
• SHY hypothesis explains that sleep is the price we pay for learning

Study: Autophagy predicts which cancer cells live, die when faced with anti-cancer drugs Posted: 10 Jan 2014 07:30 PM PST When a tumor is treated with an anti-cancer drug, some cells die and, unfortunately, some cells tend to live. A study now details a possible difference between the susceptible and resistant cells: the rate at which cells are able to cleanse themselves via the process known as autophagy.

Life scientists, colleagues differentiate microbial good and evil Posted: 09 Jan 2014 06:20 AM PST To safely use bacteria in biotechnology and agriculture, where bacteria can help to fertilize plants, understanding the differences between harmful and healthy bacterial strains is vital. One member of a family of bacteria called Burkholderiaceae is known as a potential bioterrorist agent and not used in agriculture. Can the microbial good and evil be told apart? Yes, biologists report.

Climate changes distribution of plants, animals Posted: 08 Jan 2014 09:39 PM PST Swiss plants, butterflies and birds have moved 8 to 42 meters uphill between 2003 and 2010, scientists report. Climate warming is changing the distribution of plants and animals worldwide. Recently it was shown that in the past two decades, European bird and butterfly communities have moved on average 37 and 114 kilometers to the north, respectively.

SHY hypothesis explains that sleep is the price we pay for learning Posted: 08 Jan 2014 09:38 PM PST Why do animals ranging from fruit flies to humans all need to sleep? After all, sleep disconnects them from their environment, puts them at risk and keeps them from seeking food or mates for large parts of the day.

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