Underwater operations company Phoenix International has a contract with the U.S. Navy to use a robot called Bluefin-21 to search the Indian Ocean for signs of the missing Malaysian Airlines flight ...

Bluefin tuna are an ocean-going fish that grow up to 10 feet long and can weigh as much as 1,200 pounds. Unlike almost all fish, bluefin tuna are warm-blooded and able to regulate their body ...