Sharks almost disappeared 19 million years ago and scientists don't know why – CNET
Science News
- Sharks almost disappeared 19 million years ago and scientists don’t know why CNET
- A cataclysmic die-off nearly wiped out all sharks 19 million years ago Yahoo Entertainment
- 90% of sharks mysteriously wiped out nearly 20 million years ago: researchers Fox News
- Mysterious Ancient Event Nearly Wiped Out Sharks Newser
- Sharks nearly went extinct 19 million years ago, study shows Metro.co.uk
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Source: Science News