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Scientists have puzzled over the distinctive form of giraffes at least since Charles Darwin and Jean-Baptiste Lamarck (figuratively) butted heads over how the towering ungulates got their long necks. The Darwinian theory still prevails, but which of the two processes —natural selection or sexual selection—plays a more important role still divides evolutionary biologists. A new […]
Chemists see nitrogen’s stability as challenge. A team of researchers have just figured out how to change it - with diamonds and lasers.
Scientists at Scripps Research have unveiled a new tissue-clearing method for rendering large biological samples transparent.
Scientists at Scripps Research have unveiled a new tissue-clearing method called HYBRiD for rendering large biological samples transparent.
Scientists started developing tissue-clearing methods about 15 years ago, mainly for tracing whole-brain nerve connections. A Scripps Research team has devised a novel technique that uses a sequential combination of organic solvents and water-based detergents, and makes use of water-based hydrogels to protect those molecules within the tissue that need to be preserved. It often does not require the pumping of solvents through the sample.