I spotted this terrific water fountain in downtown Boulder, Colorado on Pearl Street. It was donated by the Communication Arts department of University of Colorado. While it offers some great food for thought, I’ve delved deeper into the hydration of frogs. According to wiki.answers.com,

A characteristic of all amphibians is permeable skin. They do have the ability to absorb water through their skin. It is called cutaneous absorption. It is very uncommon to observe frogs drinking water orally. Their primary means of hydrating is by absorbing water, rather than drinking it.