Sci­en­tists Find Old­est Seaweeds

Science Illustrated - - SCIENCE UPDATE -

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

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