Algae Blooms Could Explain the Shift to Multicellular Life Like us on Earth
Although simple life forms like viruses and bacteria existed on Earth back at least two billion years, scientists are still not sure how life made the critical leap from microbes to the complex multicellular plants and animals that dominate the planet today. Scientists at the Australian National University analyzed chemical traces of life in sedimentary rocks that are up to a billion years old, to discover that a dramatic ice age called Sturtian glaciation, occurred approximately 700 million years ago. During this time also referred to as Snowball Earth, huge glaciers pulverized entire mountain ranges and caused rapid erosion of landmasses. When the...
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