Yes, rats thrive on blood, it is what keeps them alive.
Generally, no. Although a hungry rat finding a pool of blood may well try to lap some up.
Fleas are attracted to warmth and fur. As the rats passed by a place where fleas were gathered, they hopped into the rats' fur and burrowed in.
They are attracted to the meat of the rat ;x
Yes, very much. Comfy nesting and a good place to hide, also helps rats climb buildings.
Blood, generally...
No.
It was believed to be rats but know has found to be the fleas on the rats sucking blood and then transmitting the disease into the victims blood stream
It is a common Misconception that rats started the plague but this is only partly true. The rats were attracted into the cities because of the rubbish and alsorts on the streets and with those rats came bacteria, these bacteria lived on the rats and soon the rats passed these bacteria onto humans and so the plague was started.
Warm
Rats first appeared in Hawaii around the 1870's with the arrival of sugar cane plantations. The rats were attracted to the sweetness of the sugar cane plants and are the source of much destruction. Most of the rats migrated to Hawaii from Polynesia with Polynesian immigrants.
no
they are attracted to period blood though