science

Via: The Conversation
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A new study, published in Nature Communications, highlights the role of a protein called PCAF, which seems to successfully trigger a series of chemical and genetic events that allow nerves to regenerate. When we injected PCAF into mice with damage to their central nervous system, this significantly increased the number of nerve fibres that grew back, indicating that it may be possible to chemically control the regeneration of nerves in the central nervous systems.
Via: Wired
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...The new fossil, which the team has named Aurornis xui ( Aurornis meaning "dawn bird," and xui in honor of Xing Xu's contributions to bird origins), was found in Liaoning province's Tiaojishan Formation, in sediments dated about 160 million years ago, according to the Nature report. That's around the time that dinosaurs are believed to have started evolving into birds...