small spider

abdomen air arachnophobia araneae arthropods body breathing capture cephalothorax chelicerae complex courtship digestive down eight elasticity enzymes fangs food fused glands hydraulic lassoing legs lightness liquidize mesothelae mimicking mostly pedicel pedipalps pesticides predators pressure prey preying running segments sensing silk spider spiders spinnerets sticky strength tagmata venom vibrations web webs worldwide