Shrews are animals that resemble rodents. Unlike rodents, shrews will not chew on wires or other items as they have different body structures. Shrews feed mainly on insects and other small animals such as birds, snakes and even rodents. Shrews are less likely to carry diseases because their behaviours are different from rodents. Rodents feed on a wide range of food, including rubbish and waste. They are commonly found in areas with poor sanitation such as the sewer and waste collection sites, which increases their chances of contracting various pathogens.