From John Lennon lore to mysterious puzzle pieces, there's a lot of PB3 unpacking to do ...
ScienceAlert on MSN
The Largest Megalodon Vertebra Ever Found Was Excavated in The 1970s. Then It Went Missing
Megalodon’s enormous size is estimated from limited fossils, including vertebrae and teeth. (lexaarts/Creatas Video+/Getty ...
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