ScienceDaily: Top Environment News |
Posted: 05 Dec 2013 11:18 AM PST Yeast cells are able to form a memory through an aggregate composed of congregating "degenerate" proteins. A similar memory mechanism is also thought to exist in the nerve cells of higher organisms. |
Ancient 'fig wasp' lived tens of millions of years before figs Posted: 05 Dec 2013 11:16 AM PST A 115-million-year-old fossilized wasp from northeast Brazil presents a baffling puzzle to researchers. The wasp's ovipositor, the organ through which it lays its eggs, looks a lot like those of present-day wasps that lay their eggs in figs. The problem, researchers say, is that figs arose about 65 million years after this wasp was alive. |
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