Yes, my cats eats bugs but I try to prevent them from doing it as much as I can. I think it is pretty gross and I am afraid that the bugs might poison my cats or something. Cockroaches for instance might have some poison because I do spray insect killers in my house. As for some other bugs, I don't exactly know where they have been so I don't know if they are safe or not. My cats usually play with them first before putting them in their mouths so after a bit of playing, I take the bug away. I just let them have a little fun for a while. I know lizards aren't bugs but they are just as small so my cats show interest in them as well. I protect the lizards from my cats because they are "good guys". They eat mosquitoes and cockroaches.