Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser . In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript.One of the key innovations that arose in vertebrates was the evolution of a branch of the nervous system called the sympathetic nervous system.
This forms from cells produced by stem cells that originate in a structure called the neural crest. The sympathetic nervous system is associated with the fight-or-flight response and the neurotransmitter signalling molecules adrenaline and noradrenaline.
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3D mouth of an ancient jawless fish suggests they were filter-feeders, not scavengers or huntersEarly jawless fish were likely to have used bony projections surrounding their mouths to modify the mouth's shape while they collected food. Experts have used CT scanning techniques to build up the first 3D pictures of these creatures, which are some of the earliest vertebrates (animals with backbones) in which the mouth is fossilized.
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Novel UV broadband spectrometer revolutionizes air pollutant analysisA research team has developed a broadband UV dual-comb spectrometer with which air pollutants can be continually measured and their reaction with the environment can be observed in real time.
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Australian Dollar Outlook & Sentiment Analysis: AUD/USD, AUD/JPYThis article thoroughly investigates current retail sentiment on the Australian dollar, with a specific focus on the AUD/USD and AUD/JPY. In the piece, we also scrutinize potential market scenarios based on contrarian technical signals.
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EUR/USD Price Analysis: The key support level is seen around 1.0730, oversold RSI condition eyedThe EUR/USD pair loses traction around 1.0745 on Thursday during the early European session.
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NZD/JPY Price Analysis: Bears advance and target the 20-day SMAThe NZD/JPY pair declined near the 91.33 mark, indicating a battle between optimism favoring a bullish market and mounting bearish pressure.
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