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New Study Explains Mysterious Source of Greenhouse Gas Methane in the Ocean

For decades, marine chemists have faced an elusive paradox. The surface waters of the world’s oceans are supersaturated with the greenhouse gas methane, yet most species of microbes that can generate the gas can’t survive in oxygen-rich surface waters. So where exactly does all the methane come from? This longstanding riddle, known as the “marine methane paradox,” may have finally been cracked thanks to a new study from the Woods Hole Oceanographic Institution (WHOI). (more…)

Scientists unravel the genetic secrets of nature’s master of mimicry

By Guest PostJuly 8, 2014Naturecognitive health, florian mehring, Germany, harro von senger, harvard konzept, imperial college London, jena, konflikte vermeiden, listiges verhalten, liu birong, michael forster, monarch butterflies, mysterious source, nairobi, Nature, Paris, professor, richard ffrench constant, scientists, sinologe, tanpan, university of exeter

Scientists investigating how one of the greatest shape shifters in the natural world is able to trick predators to avoid being eaten have identified the gene behind the fascinating feat.

The African Swallowtail butterfly, also known as the ‘Mocker Swallowtail’ or the ‘Flying Handkerchief,’ can appear to change both colour and shape.

Males of the species fly boldly around the tree tops, their rapid flight making them look like shaking handkerchiefs, however females lurk in the bushes and pretend to be examples of Monarch butterflies that are nasty to eat. (more…)

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New Study Explains Mysterious Source of Greenhouse Gas Methane in the Ocean

Scientists unravel the genetic secrets of nature’s master of mimicry