A massive ice age wiped out ocean life 445 million years ago, reshaping ecosystems and setting the stage for jawed fish ...
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Mass extinction helped jawed vertebrates rise, study finds
About 445 million years ago, Earth’s oceans turned into a danger zone. Glaciers spread across the supercontinent Gondwana, ...
About 445 million years ago, Earth nearly wiped out life in the oceans. Glaciers spread across the supercontinent Gondwana, ...
Learn how microscopic fossils reveal that tiny seafloor organisms were already feeding and recycling nutrients soon after one ...
An international team of scientists from South Africa, Canada, France and the UK has uncovered fossil evidence of a tiny ...
Discover how the first mass extinction put jawed fishes on the map, species that would later come to dominate animal life on ...
Warnings that humanity is heading toward its own disappearance have shifted from the fringes of science fiction into mainstream research and public debate. Instead of vague prophecies, scientists now ...
Speciation and extinction are the twin engines that have sculpted the diversity of life on Earth. Speciation, the process by which new species arise from ancestral populations, is driven by a mixture ...
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