Giant tarantulas keep tiny frogs as pets. Insects will eat the burrowing tarantulas’ eggs - so the spiders protect the frogs from predators, and in return the frogs eat the insects. Ecologists categorize this interaction as symbiotic mutualism.
This is a Ravine Trapdoor Spider. The scientific name is Cyclocosmia truncata Can you believe that this the back of a real spider? what a curious- and beautiful- little thing this is. A Ravine Trap Door Spider