Science Illustrated

Scientists Find Oldest Seaweeds

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In rock from Chitrakoot in Central India, scientists from The Swedish Museum of Natural History have discovered 1.6-billion-year-old remains of multicellu­lar red algae, making them the oldest known plant-like fossils. The find shows that multicellu­lar life originated much earlier than thought. The first evidence of mono-cellular life on Earth is 3.5+ billion years old, but current knowledge says larger organisms did not evolve until 600 million years ago. So, the ancient red algae force scientists to alter their theories about evolution.

 ??  ?? A scan shows that like modern algae, the ancient algae had organs, which could absorb CO . 2 ALGA CELLS plain Crater on the Utopia Planitia CO 2FIXING ORGAN
A scan shows that like modern algae, the ancient algae had organs, which could absorb CO . 2 ALGA CELLS plain Crater on the Utopia Planitia CO 2FIXING ORGAN

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