Tugboat, or Tug, a boat with a powerful engine used to tow or push ships and barges. Tugboats are usually small and are used mainly in harbors, rivers, and canals. They are generally about 100 feet (30 m) long and about 25 feet (8 m) wide. Most tugs use diesel or diesel-electric engines of up to about 2,000 horsepower. Larger, oceangoing tugs, up to about 300 feet (90 m) long, are used to aid disabled ships.
Was a dog really the first to encounter bin Laden? We may never know, but we do know that man's best friend has been serving in wars for centuries, getting soldiers smokes, sniffing out bombs and patrolling borders. Why do canines make such good soldiers?
It may make you run. It may make you throw up. It will definitely make you cry. It's tear gas, and it's headed your way.