Spiders produce silk using special organs called spinnerets, located typically on the underside of their abdomen. They look a bit like an icing nozzle and spiders can have a cluster of them which are ...

This is because the spider's vital organs usually remain intact, even though all of the abdomen, and occasionally part of the cephalothorax, may be filled with worm coils. Eventually in a scene ...

Most female black widow spiders have a red or orange hourglass mark on their abdomen, although this can vary from one spider ...

Abdomen markings: All species have distinctive sets of markings on their abdomens (the rear part of the spider's body). They have a narrow white or lighter band around the front of the abdomen towards ...

The abdomen of a wolf spider is often patterned, helping it blend into its surroundings for camouflage. Wolf spider bites are rare in humans; like other spiders, even very poisonous ones ...

There is an hourglass shape on the abdomen, usually in a shade of orange. Female brown widow spiders are relatively small at about 13 millimeters. The males are about half the size of the females.

Both species have brown jaws, darker legs, and dark dorsal stripes running vertically across the abdomen. They have eight eyes in two horizontal rows. Female yellow sac spiders typically range ...