Our cats catch and eat almost anything around our house. I’ve seen them eat rats, mice, squirrels, sparrows, pigeons, geckos, skinks, lizards, frogs, and bugs. The only things they won’t touch are fish from the pond in front of our house and toads, so they really do know what is and isn’t good for them.
The huntsman spider in this video is pretty big, but I’ve seen bigger both inside and outside our house. They are pretty scary and amazingly fast, but I usually try and catch them to release them away from our cats.