Rodents in Hong Kong

Types of rodents that common found in Hong Kong are Norway Rats, Ship Rats and House Mice.
Rodents are omnivorous, with strong adaptability to the environment, reproductive power are astonishing.
Norway Rat
Ship Rat
The average reproductive power of an adult rat is 4 to 8 time per annum, and 6-8 pups each time. That is, nearly 60 offsprings a year from a pair of rats. The pups of about 2-3 months will become mature enough to reproduce the next generation, so a pair adult rats can reproduce up to 880 rats per year and can even reach 774,400 rats within two years.