Spider spinning silk. Macrophotograph of a orb- weaving wasp spider,Argiope bruennichi,spinning silk. Spiders spin silk from specialised organs on the abdomen known as spinnerets. The silk is a fibrous protein that is secreted as a fluid and is stretched to form strands of a solid polymer. This polymer is stronger than steel. Each spider can spin several kinds of silk depending on requirements. Orb-weaving spiders use strands of sticky and non-sticky silk to make highly intricate webs for catching flying insects. Wasp spider webs feature characteristic zig-zag strand patterns. They live in southern Europe | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Nuridsany, Claude / Perennou, Maria |
Taille de l’image : | 3716 px × 2408 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
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