Beginning before sunset, Dr. Paul Hyder will talk about cacti and lizards and more. Once it gets dark, the field trip will focus on scorpions and other nocturnal creatures. Find out how desert organisms avoid typically high, frequently lethal, daytime temperatures by adapting to a nocturnal way of life. This field trip is easy walking but be sure to wear sturdy hiking shoes. Bring flashlights (preferably 1 white and 1 UV) and a camera. Meet at the gate of the Tom Mays Unit of the Franklin Mountains State Park. There is a $2 park fee or use your Park Pass. For more information, contact Dr. Paul Hyder, 915-244-5322, phyder@zianet.com.