For the third time this month, a large thresher shark has washed ashore on Cape Cod, reinforcing what marine scientists say is a tragic, but familiar, seasonal pattern driven by rapidly cooling waters and the Cape’s unique geography.
For a long time, we only suspected that thresher sharks used ... the common thresher shark (Alopias vulpinus), bigeye thresher shark (Alopias pelagicus), and pelagic thresher shark (Alopias pelagicus).
... and evolution at their most precise.The thresher shark has a tail equal in length to that of its bodyThe thresher shark’s tail, or caudal fin, defines not only its silhouette but its survival.