TEHRAN, August 21 -Beaches on Cape Cod, Mass., have routinely closed this summer after shark sightings, and the sharks are now regarded as a long-term threat.
TEHRAN, July 18 -With the help of next-generation satellite and acoustic technology, marine biologists have identified the migration patterns and hangouts of baby white sharks in the North Atlantic.
TEHRAN, June 25 - Just a stone's throw off the coast of Belize, brightly colored tropical fish mingle with sharks , manta rays and sea turtles around a sprawling reef beneath the bright turquoise waters of the Caribbean.