They also have no silk glands and therefore do not build webs.

They also lack silk glands - making spinning webs impossible.

The larvae have silk glands which are located on the labium.

Only the larvae of insects have silk glands.

They use these silk glands to make silk for cocoons and shelters.

This particular spitting spider features the presence of silk glands in its cephalothorax.

Tarantulas also have silk glands in their feet.

“There’s no lab anywhere in the world where somebody has an artificial silk gland.”

Experiments are underway to isolate another clone of silk gland EF-1α.

Sphecid wasps also have a silk gland that is important in many functions, such as nest building.

Other arachnids may also have silk glands in their cephalothorax, such as the pseudoscorpions.

Spiders also have several silk glands, producing different silks for different purposes.

An individual spider can produce multiple varieties of silk because it has numerous silk glands inside its body.

Each spinneret has many spigots, each of which is connected to one silk gland.

There are at least six types of silk gland, each producing a different type of silk.

For example, harvestmen have no venom or silk glands; spiders have these.

A silkworm has only one pair of silk glands and can make one type of fiber.

Spiders' silk glands contain a solution of silk proteins dissolved in water.

Amblypygids have no silk glands or venomous fangs.

Mucous layers, assumed to be produced by the silk glands, cover the cocoon externally.

The suborder Mesothelae is unique in having only two types of silk glands - thought to be the ancestral condition.

From the silk gland, the protein solution is squeezed out of a duct like toothpaste out a tube.

Although hersiliid spiders do not spin any webs, their silk glands, which belong to six types, are large and complex.

The ants' larvae possess silk glands with which they spin their own pupal cocoons.

These amino acids residues are also conserved in silk gland EF-1α at the same sites.