When: Fridays, 10 a.m. Continues through Oct. 14 2011
Docents present characteristics of snakes and lizards, how to tell the difference between species, and the roles each serves in the Sonoran Desert, at 10 a.m., every Friday, through July 27; free with admission: $8; $6 senior; $5 active military; $4 student with ID; $2 child age 5 to 12; and free member or child younger than 5. Call or visit tohonochulpark.org for information.