Cort loves spiders. He doesn’t play with them, he just stops them and eats them. If he sees a beetle, roach, ant, cricket, etc. he’ll play with them until he kills them or they get away, but he does not eat them. I decided to check out this behavior. Spiders are the most common of all the bugs, I have no shortage of them in my house. Most of Cort’s prey is probably the common house spider (Parasteatoda tepidariorum). Their common predator is birds, cats, dogs, and wasps. They eat mosquitoes, flies, and ants and live about one year.