GEORGETTE DOUWMA / SCIENCE PHOTO LIBRARY GEORGETTE DOUWMA / SCIENCE PHOTO LIBRARY
Gecko (family Gekkonidae) attached to a window. This lizard is found in warm climates throughout the world. The gecko is able to climb up walls and across ceilings due to weak intermolecular forces (van der Waals forces) created by the microscopic hairs under its feet. On each step, the gecko first uncurls its toes to make contact, then unpeels the foot to take the next step. This uncurling and peeling action can be performed up to 15 times per second. Photographed in Lembeh, North Sulawesi, Indonesia.
Model release not required. Property release not required.