Uperodon nagaoi
This frog lives in holes in trees.  It can live in those holes by itself or with tarantula spiders.  It can live with either of two species in the genus Poecilotheria: Poecilotheria ornata or Poecilotheria fusca. It is mutualistic symbiosis.  This means that the frogs help the tarantulas and the tarantulas help the frogs.  When frogs and tarantulas live together, animals that want to eat the frog see or smell the tarantula and stay away.  The frog eats insects that can be parasites on the tarantula or insects that eat the tarantula's eggs.