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Sydney (AFP) – Australian researchers have discovered the world's oldest biological color of the Sahara Desert in a discovery that they explained on Tuesday why complex life forms have only recently emerged on Earth.
More than 1.1 billion years ago, about 500 million years earlier than the Rex Tyrannosaurus dinosaur species, according to Jochen Brocks, Senior Researcher at the Australian National University .
The Earth itself is about 4.5 billion years old and the researchers said the latest discovery revealed why more sophisticated animal and plant life has only existed since 600 million years ago. years
. delayed the evolution of complicated life forms, but the discovery of cyanobacteria at such an early date suggests that 'algae, although still microscopic, are a thousand times larger than cyanobacteria and are a source much richer food, "Mr. Brocks told AFP.
"The cyanobacteria oceans began to disappear about 650 million years ago, when algae began to spread rapidly to provide the energy necessary for the evolution of complex ecosystems. , where large animals, including humans, could thrive on Earth. "
samples accidentally when an oil company that was drilling in the Taoudeni basin in West Africa sent them rocks for analysis
Pigments are fossilized relics of chlorophyll, a product Chemical that allows plants and certain microscopic forms to transform light into energy, says that the pink pigment that they discovered would originally appeared blue-green to the human eye [19659008TheresultswerepublishedTuesdayintheProceedingsoftheNationalAcademyofSciencesreview
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