Image: A spider's front spinneret

A spider's front spinneret

A front spinneret - the largest spigot produces the spider's safety line, called the dragline. The smaller spigots produce lots of short sticky threads that make a strong attachment point for other silk lines. Electron micrograph.

Judy Thompson
© Judy Thompson

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Tags web, silk, spinneret, arachnids, invertebrates, spiders, scanning electron microscope, SEM, micrograph,