John Chisholm, a shark scientist with the New England Aquarium’s Anderson Cabot Center for Ocean Life, posted a sped-up, 39-second clip of state scientists dissecting the roughly 13-foot shark’s carcass to determine its cause of death.

A necropsy was underway Wednesday to determine the animal's cause of death, according to the Atlantic White Shark Conservancy.

The Cape Cod-based department received notification about a shark that washed up on its beach and it turned out to be a massive, great white shark that died. The OPD shared pictures of its discovery on its Facebook page on Tuesday afternoon.