While it initially looks like tugboats are floating flat atop the water's surface, they're actually very low under the surface to give them better stability. The resistance against water that this ...

The U.S. Navy has also wielded some of the smallest tugboats around ... the biggest ship of its kind on the oceans at just under 1,200 feet long and with room for a ludicrous 7,600 passengers.

The Mexican Navy ship Cuauhtemoc that hit the Brooklyn Bridge on Saturday night was sailing around the world on a goodwill ...