National Geographic : 1933 Aug
A SPIDER BUILDS A TRAPDOOR Holding the door vertical and standing on her head, the spider has brought her spinnerets into position and is applying a spray of web over the edges and the under surface. Damp earth is used for reinforcing, especially in that part where the hinge is located (see page 201). Photographs ©Lee Passmore A PIN IS NOT ENOUGHWHEN SHE CLINGS WITH HER FANGS Usually, when the door isshut, the spider grips with herfangs the two small holes near the top ofthe lid and braces herlegs against thewalls of the nest. A knife bladebends when attempts aremade topryopen the door (see page 210).