Spider
Diving bell spider (Argyroneta aquatica) or water-spider that lives in ponds and slow-moving river just need to take the air out of the water once a day. Conclusion scientists spider European researchers was published in the Journal of Experimental Biology.
The researchers measured oxygen levels in and around the net air bubbles that cover the head of an animal that lives in water. They found that the bubble acts like gills filter oxygen from water and remove carbon dioxide.
Spiders that live in Europe and northern Asia is a web with fine hairs of his stomach. To find out how many times the spider takes in air, an invertebrate expert, Prof. Roger Seymour and Dr Stefan Hetz, collect samples of the spiders of the River Eider, Germany. They build artificial habitats of spiders in the laboratory.
It turned out that by measuring the differences in levels of oxygen in the bubbles and the water environment, researchers get gas exchange as well as gills in animals that breathe in water.
"When spider breathe oxygen in the bubble, oxygen levels decrease and oxygen from water into the bubble," Seymour said as quoted by the BBC on Thursday (06/09/2011).
The researchers measured oxygen levels in and around the net air bubbles that cover the head of an animal that lives in water. They found that the bubble acts like gills filter oxygen from water and remove carbon dioxide.
Spiders that live in Europe and northern Asia is a web with fine hairs of his stomach. To find out how many times the spider takes in air, an invertebrate expert, Prof. Roger Seymour and Dr Stefan Hetz, collect samples of the spiders of the River Eider, Germany. They build artificial habitats of spiders in the laboratory.
It turned out that by measuring the differences in levels of oxygen in the bubbles and the water environment, researchers get gas exchange as well as gills in animals that breathe in water.
"When spider breathe oxygen in the bubble, oxygen levels decrease and oxygen from water into the bubble," Seymour said as quoted by the BBC on Thursday (06/09/2011).
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