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Spiders obtain their oxygen through four respiratory organs located on the underside of their abdomens. These organs are arranged into two pairs, an anterior pair at the very front end of the abdomen, and a posterior pair behind the anterior pair.
A spider (usually limited to individuals of a small species), or spiderling after hatching, will climb as high as it can, stand on raised legs with its abdomen pointed upwards (tiptoeing), and then release several silk threads from its spinnerets into the air.ome mites and some caterpillars also use silk to disperse through the air. Ballooning spiders can land on water and survive afloat. Their water-repellent legs keep them alive on both fresh and salt water enable them to survive waves to 0.5 millimetres in height.