Why are rats always on ships?
Why are rats always on ships? History. Seaports have a longstanding history of dealing with rats. They are attracted to ships due to the smell of fish, additional food resources and comfort of the heating & A/C. Because cruise ships have all of these boxes checked, they are highly desirable for rodents - if they can get on board.
Are black rats aggressive?
This means that a rat infestation will result in property damage due to their constant gnawing. Plus, both black rats and brown rats are known to be quite aggressive, and they can bite if they feel threatened.
Are rats a problem on cruise ships?
Rats are a problem on any boat, ship, vessel. Boats/ships at anchor will have rat guards on their anchor lines to keep them from climbing into the ship.