Shark attack data kept by shark researchers shows that the number of reported attacks on humans in Massachusetts during the last 20 years is more than twice the number of incidents recorded in the previous 160 years.
Chasing Shadows: My Life Tracking the Great White Shark (Hardcover)
Over 20 great white shark sightings reported off Cape Cod this week, forcing beach closures
Shark Attack Map Reveals Where Fatal Encounters Have Taken Place in US
Shark sightings get more common at New York beaches
Shark attacks (WARNING: GRAPHIC IMAGES)
Getting Past Our Fear of Sharks - Outside Online
Shark attack history on the Cape and all along Massachusetts: More frequent attacks, but extremely rare, shark game vip
Better Living With Sharks, Through Technology
Recent shark attacks are worrying beach-goers, yet experts say they're very rare