because they can carry diseases which can be harmful to humans
Bacteira is found on almost everything even us
Many snakes can be harmful, but they benefit us by eating rodents such as: mice, rats, and etc. that might carry diseases. Spiders can be harmful as well, they benefit us by eating insects like: house flys, mosquitos, and other insects. They keep the bug population at a normal level.
Rats can bite us, but they do not poison us. They are not venomous creatures.
no we can never crreate the rats.
Rats compete with us because rats eat our grain crops.
some are harmful but some are not harmful
Because God doesn't like us.
Lab rats helps us by using them to do dangerous experiments. That way we don't have to do it on humans.
obesity is harmful to us because it causes many diseases
well its harmful to your computure
no it is not harmful to us
Yes, but they are roughly as common there as in major US or other European cities.