The strangler fig, a tree that grows in Southeast Asia is a killer tree. It kills other plants and makes room for it to grow.
Birds scatter the fig seeds around the branches of another tree.
When the seeds germinate, the roots grow and as they grow longer they grow in twisted shapes around the bark of the other tree right down to the ground. They grow stronger and bigger and slowly crush the bark of the other tree on which they are hanging. The roots of the strangler fig tree then cuts off the food supply of the host. Bright light attracts nocturnal insects. This phenomenon is called phototaxis.