In fact, the toughest dragline in this survey is this one right here in this white region, a non orb web weaving spider.

So if you ever have the opportunity to dissect an orb web weaving spider, and I hope you do, what you would find is a bounty of beautiful, translucent silk glands.

Some of them are orb weaving spiders and some of them are non orb weaving spiders.

Nick Sears demos the Orb

In an orb web weaving spider, you can find seven types of silk glands, and what I have depicted here in this picture, let's start at the one o'clock position, there's tubuliform silk glands, which are used to make the outer silk of an egg sac.

Spider

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I'm a starved spider.

Here is a pest, devastating pest, a spider mite, because it does a lot of webbing like a spider.

When you look at this orb web, you're actually seeing many types of silk fibers.

But what, exactly, is spider silk?

Spider silk is almost entirely protein.

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There's a spider in the box.

In addition to these biomimetic applications of spider silks, personally, I find studying spider silks just fascinating in and of itself.

Cheryl Hayashi The magnificence of spider silk

There are many kinds of spider silk.

And this spider spins a bilingual alphabet.

She shrieked whenever she saw a spider.

This is a picture of the spinnerets coming out of a spider and the silk being formed from a spider. Isn't that beautiful?

This is not a spider, it's a monster!

There's the aggregate and flagelliform silk glands which combine to make the sticky capture spiral of an orb web.

So silk comes out of the spinnerets, and for those of us spider silk biologists, this is what we call the business end of the spider.

We call that the tool kit of a spider.

Learn how to program with ants and spider webs

So one of these works is the Spelling Spider.

These are spinneret glands on the abdomen of a spider.

That's what the spider has to interact with their environment.

This is the dragline spun by scytodes, the spitting spider.

You can't help but actually ripping that spider web apart.

To give you an idea of what a spider silk protein looks like, this is a dragline silk protein, it's just a portion of it, from the black widow spider.

Turning rocks over revealed this crab spider grappling with a beetle.

How does an individual spider make so many kinds of silk?

Inside each spider, there are hundreds of silk glands, sometimes thousands.

So the Spelling Spider is a cousin of the spelling bee.

But here comes nature that provides us with a good spider.

And in the back you can see a spider web pattern.

This is the silk that's used to make the frame and radii of an orb web, and also the safety trailing dragline.

This is a predatory mite just as small as a spider mite, by the way, one millimeter, two millimeters long, not more than that, running quickly, hunting, chasing the spider mites.

It's been hypothesized that orb weaving spiders, like this argiope here, should have the toughest dragline silks because they must intercept flying prey.

And He it is Who hath created the night and the day, and the sun and the moon, each in an orb floating.

And He it is Who hath created the night and the day, and the sun and the moon, each in an orb floating.

For example, this garden spider can make seven different kinds of silks.