Strange sea creatures called ctenophores have a fused nerve net where scientists expected to see synapses. Did they evolve their nervous system separately from other animals?
A Lab Experiment Replicated One of Evolution's Biggest Moments theatlantic.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from theatlantic.com Daily Mail and Mail on Sunday newspapers.
Disabling a single regulatory gene in a species of sea anemone caused a cell used for hunting and self-defense to completely shift its form and function, opening a door to better understanding evolutionary mechanisms, according to a new study.