In Washington, they are now found wherever humans have established permanent residence or industry. Old World rats include the Norway rat (Rattus norvegicus, Fig. 1), also known as the brown rat, sewer rat, or wharf rat, and the black rat (Rattus rattus), also called the roof rat.est Sites. 1  Roof rats build nests in attics, trees, and overgrown shrubbery or vines. 2  Norway rats prefer to nest at or under ground level, and in the lower floors of buildings. 3  Rats can have several nest sites. 4  Due to their daily need to drink water, rats prefer to nest where water is easily available.
Yes | No Thank you! You can get pregnant if you have sex up to 5 days before you ovulate or up to 24 hours after you ovulate. However, not everyone ovulates on day 14, so it's tough to tell when you ovulate unless you use ovulation predictors and chart your temperature to confirm that you did ovulate.ou can definately get pregnant at other times in the month! Its not always on the female to determine when she is most fertile, which is during ovulation. If the male has potent sperm that are strong swimmers and get to your egg to do the job, then of course you can get pregnant.
1 To get pregnant, you should have sex a few days leading up to and on the day of ovulation.  Sperm can live up to 6 days in your body, but your egg can only survive 12 to 24 hours. That's why having sex before and during ovulation is best. Youâll raise your odds of the sperm and egg meeting.