People have doubted the strength of the claim that “once in 70 years” in the Gemara or “once in 7 years” in Maseches Tzitzis could mean that large amounts of shellfish show up. Facts show otherwise.
Videos
Tens of thousands of shellfish wash ashore on the Arabian Sea coast
2014
Thousands of shellfish wash up on same stretch of coast which saw mass die-off | ITV News
2023
'They're Not Safe To Eat': Tens of Thousands Surf Clams Washed Up Onto Revere Beach After Storm