A fisherman has found what experts believe may be a mammoth tooth off the coast of New Hampshire.
Mike Anderson of Rye was fishing for scallops when he noticed a six inch triangular object.
Will Clyde, a University of New Hampshire associate professor of geology, said it may be a fossilised mammoth tooth, and wants to take a closer look.
He said mammoth and mastodon bones have been dragged up before in nearby waters, although they are more commonly found in the western and southern parts of the country.
Mr Anderson, who found the object near Rye Harbour, has previously discovered whale vertebrae, porpoise skulls and an old fuel tank that he thought was a treasure chest.