Chess King (David) - we spend time with Tucson teen chess champion, Johnathan Martinez. Monsoon Mushrooms (Tony) - Mount Lemmon is home to one of the world's most prolific and diverse mushroom populations. (encore) Far Afield: Sad Reptilian (Andrew) - from our Far Afield series, we bring you the melodic and anonymous ... 'Sad Reptilian.' Bisbee Science Lab (Vanessa) - an innovative stem education program for the next generation of young scientists in Bisbee, AZ.