Listen! A frog
Jumping into the stillness
Of an ancient pond!
Matsuo Basho 1686
I already hyped National Geographic once so this time I'll just promote their website. Apart from the always excellent photographs their news section contains a lot of items of relevance to this class. Currently, for example, they have Parasite Makes Ants Look Like Berries, Starfish Taking Over Waters in Indonesia and, best of all, One-Ton Rodent Discovered in Uruguay.
The photograph and haiku above is from the magazine article on Japan's haiku master Matsuo Basho, also available on the website.