Are you afraid to take a walk in the woods because of ticks, mosquitoes and other disease carriers that bite? In this installment of "Leonard Lopate At Large" on WBAI, two scientists from the Cary Institute of Ecosystem Studies, Dr. Richard Ostfeld and Dr. Shannon LaDeau, give us an in-depth view of how and why they bite us, the diseases they carry and what we can do to protect ourselves.