A genus of sea urchins found in Atlantic and Mediterranean waters, important in biological research.
Scientific Latin genus name, likely named after an ancient place or person. The exact origin is uncertain, but follows classical naming patterns for marine organisms documented by 19th-century zoologists.
Arbacia sea urchins became lab superstars because their eggs are transparent and develop externally—scientists use them to study how embryos develop, and they've revealed fundamental secrets of how life begins!
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