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The end-Permian extinction 252 million years ago wiped out over 80 per cent of marine species, but many ecosystems still had complex food webs despite the losses
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New Scientist
The end-Permian extinction 252 million years ago wiped out over 80 per cent of marine species, but many ecosystems still had complex food webs despite the losses
www.newscientist.com
Top predators still prowled the seas after the biggest mass extinction