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“oxygen”

1.7-billion-year-old fossils reveal a crucial clue to the rise of complex life

Scientists studying ancient Australian rocks uncovered more than 12,000 fossils from some of the oldest known eukaryotes on Earth. These early complex cells lived in settings ranging from coastal mudflats to the open sea, but only where oxygen was available. Oxygen-free environme

All Top News -- ScienceDaily · 2026年9月27日 11:55

科学与环境

Blood pressure enzyme reveals second job: Making sulfur rings for cellular antioxidants

Antioxidants such as vitamins C and E protect cells by neutralizing free radicals, such as reactive oxygen species, before they can damage genetic material or cell membranes. Such damage can contribute to the development of neurodegenerative diseases. Antioxidants therefore help

Phys.org - latest science and technology news stories · 2026年9月25日 20:40