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What is this?
I think it's a skate egg sack. Sometimes called a mermaids purse.
It's a shark egg sac. Probably fom a nurse shark.
I found this on the beach in Martha's Vineyard and I can't tell if it's animal, vegetable or mineral.
Lat: 41.38, Long: -70.65
Spotted on May 20, 2010 Submitted on May 20, 2010