and live for a long time. just killing the ants that you see is not going to do any good, you have to kill the entire colony, and this is best left to a professional. call a pest company to inspect your home for ants.
spiders are another pest you want to get rid of if they start to get out of control or they are biting spiders. when you make an appointment with a pest control company, you can have your entire property inspected and if the pest control company finds pests they will come up with an action plan that can help you get rid of all your pests 