Great white sharks return to Cape Cod off Chatham

It’s that time of year again, and it should come as no surprise that great white sharks (Carcharodon carcharias) have returned to Cape Cod for the summer. The Cape Cod Times reported last week that signals (transmitted from tracking tags) were received off Chatham, MA from two white sharks tagged last year in Cape Cod waters.

For the past few years, the presence of white sharks in the area during the summer months has been making news. It is believed that the large population of grey seals (Halichoerus grypus), a natural food source for the sharks, is part of the reason that the sharks congregate in the waters off of Chatham during this time period.

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