Zoo Boo will take place on Friday, October 22, and Saturday, October 23, from 6 p.m. to 9 p.m. Little Zoo Boo (recommended for ages 7 and under) will be on Sunday, October 24, from noon to 4 p.m.   Admission to Zoo Boo is free for Zoo members. General admission for non-members is $7.50 for adults and $5.50 for children ages 3-14. Haunted train ride tickets are just $2 per person. Presale tickets will be available Oct. 1 at the main gate.  The Potawatomi Zoo will be closed during the day on October 22 and 23 to prepare for Zoo Boo; also, the Zoo will not open until noon for Little Zoo Boo on October 24.  For more information about Zoo Boo or volunteer opportunities, please contact the Potawatomi Zoological Society at (574) 288-4639 or visit www.potawatomizoo.org.