Drider

Driders are similar to Centaurs but with an arachnid half rather than an equine half. The human half transitions into a spider half, from where the hips would be on a human to the cephalothorax of the spider. The fangs, eyes, and pedipalps are replaced by the human equivalent. The human hands replace a spider's pedipalps. The spider body is usually proportional in size to the human half, but this is sometimes reversed.

In this mix, the human half has a heart, lungs, and stomach. The spider half has the legs, intestines, reproductive organs, and silk glands. The human half also has fangs that can produce venom. Because the Drider has a humanoid stomach, they can eat and digest normal food. However, they do have the ability to produce a venom that liquifies prey, and then they can drink the juices. This only works on animal cells, not plant cells. Driders often resort to liquefying food if they are ill, as it eases digestion. There are groups of driders who, for cultural reasons, will only eat liquefied whole-body prey, normally from anything that gets caught in their webs. In these cases, the prey is often alive and paralysed before being injected with the liquefying venom. Other cultures of Driders will swallow prey whole and alive. However, this practice is dangerous and can result in fatal injuries.

Driders are Oviparous, meaning they lay eggs. A male Drider creates a silk sack filled with sperm and deposits it inside the female's epigynum (spider vagina) located on the underside of the abdomen. In pairings that involve non-Driders, the couple must be able to position themselves so that the male's penis can enter the epigynum or the male drider can release a load of sperm directly into the female's vagina rather than creating a sack. Female driders create an egg sack with silk and lay it in a location of their choosing. It is a common practice among lesbian drider with mamalian partners to use artificial insemination. In this case, the drider will insert her egg sack into their partner's womb. This allows the drider partner to experience laying eggs, and the mamalian partner will experience something similar to pregnancy and birth. The silk sack protects the eggs from the immune system as they develop; then the mamalian mother will birth the drider babies once they hatch.

Welth drider women, regardless of sexual orientation, often hire a "soragat" to carry their eggs in this method so they can live their life rather than dedicating it to protecting an external and vulnerable egg sack. This method does not have the same risks of pregnancy. There is no implantation, no hormones, no nutrients exchanged, and very little risk that the baby drider will cause any harm during the "birthing" process. These "soragats" often take hormonal birth control to eliminate the dangers of menstruation or pregnancy that could damage the eggs. Some babies have been known to bite their host before birth, but their venom glands are not fully developed at this stage. The thick lining from the birth control protects the womb in most cases. Only rare cases require surgery.