Most ships are tied to the dock. Rats can walk along the ropes that are tied to the dock, right onto the ship.
Sea rats are fierce the way they tear through a ships cargo. Turkish rats are the most fierce rats in the world.
Some countries share a land border, so it is easy for the rats to just cross the border into another country. Rats also board ships and travel to countries far far away from each other.
What are Rats
No rats are vertebrates.
rats...
They are the same. they get onto the ships from the mooring lines.
Sea rats are fierce the way they tear through a ships cargo. Turkish rats are the most fierce rats in the world.
They likely came from ships.
Black rats and brown rats wer introduced into Australia as a result of climbing aboard ships via ropes and rigging.
To eat the mice and/or rats.
There were 25 cats on the ships to eat the rats.
Rats
The rats carried fleas that actually caused the plague. The rats were carried throughout Europe on ships carrying trade goods.
Rats were taking over merchant ships that sailed from country to country. These rats carried a flea which carried the disease. As you can imagine, the disease began to spread everywhere the ships went.
Black death was caught by rats that came on the ships of vikings. The disease actually comes from the ticks on the rats.
Stinky and rotten with rats in side
If the crates or packages are in storage before boating, rats can find a small hole or crack, allowing them to get into the crate and on to the boat. :)