ScienceDaily: Top Environment News

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• Sperm viability greatly reduced in offspring of animals treated with common antibiotic tetracycline
• Polluting China for the sake of economic growth
• When to have kids: A complex question for hazel dormice
• Scientists provide first large-scale estimate of reef shark losses in the Pacific Ocean
• Purple sea urchin metamorphosis controlled by histamine
• Connecting cilia: Cellular antennae help cells stick together

Sperm viability greatly reduced in offspring of animals treated with common antibiotic tetracycline Posted: 27 Apr 2012 07:02 AM PDT Scientists report that male pseudoscorpions treated with the antibiotic tetracycline suffer significantly reduced sperm viability and pass this toxic effect on to their untreated sons. They suggest that a similar effect could occur in humans and other species.

Polluting China for the sake of economic growth Posted: 27 Apr 2012 07:01 AM PDT China's economic growth will continue to be energy-intensive and highly polluting for the foreseeable future with emissions and efficiency far below capital growth on the agenda, according to a new study.

When to have kids: A complex question for hazel dormice Posted: 27 Apr 2012 07:01 AM PDT Unlike many of their rodent cousins, common dormice hibernate. Their life history strategies have now been investigated, with surprising results: Common dormice give birth to young either as early as possible after waking up from hibernation or as late as possible, just in time to get the young fit for hibernation.

Scientists provide first large-scale estimate of reef shark losses in the Pacific Ocean Posted: 27 Apr 2012 07:01 AM PDT First study to provide estimates of reef shark losses in the Pacific Ocean are sobering. Researchers noted the enormous detrimental effect that humans have on reef sharks.

Purple sea urchin metamorphosis controlled by histamine Posted: 27 Apr 2012 06:59 AM PDT Now that hay fever season has started, sufferers are well aware of the effect of histamines. However it is easy to forget that histamine is also a neurotransmitter involved in controlling memories, regulating sleep, and controlling secretion of gastric acid. New research shows that for the purple sea urchin histamine is also responsible for controlling metamorphosis from a free swimming larval form to the spiny adult living on the sea floor.

Connecting cilia: Cellular antennae help cells stick together Posted: 24 Apr 2012 07:27 PM PDT Primary cilia are hair-like structures which protrude from almost all mammalian cells. They are thought to be sensory and involved in sampling the cell's environment. New research shows that cilia on cells in the retina and liver are able to make stable connections with each other - indicating that cilia not only are able to sense their environment but are also involved in cell communication.

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