Ancient, 30-foot ancestor of great white shark unearthed in Mexico quarry
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Ancient, 30-foot ancestor of great white shark unearthed in Mexico quarry
https://www.livescience.com/animals/sharks/ancient-30-foot-ancestor-of-great-white-shark-unearthed-in-mexico-quarry
"Exceptionally preserved" fossils of an ancient shark that lived alongside the dinosaurs has finally revealed what the predator looked like — and why it may have gone extinct.