Dusky shark resurgence in Cape Cod waters
Key Questions
Are dusky sharks returning to Cape Cod waters?
Yes, dusky sharks are returning after 40 years, appearing alongside great whites in the region. Researchers have confirmed their presence through tracking efforts.
What evidence supports the dusky shark resurgence?
The first confirmed seal predation by a dusky shark was recorded near Nantucket. This indicates an ecological shift that may have public safety implications.
How are scientists responding to the return of dusky sharks?
Researchers are monitoring the species' behavior and advising beachgoers on the changing dynamics in Cape Cod waters. The focus includes both great whites and the returning duskies.
Dusky sharks returning to Cape Cod after 40 years alongside great whites, with first confirmed seal predation near Nantucket. Ecological shift with public safety implications.
Sources (2)
Updated May 24, 2026