Talk:Arachne/@comment-29661846-20160817005412/@comment-30142573-20161114184122

Spiders have a more complex anatomy than some people think. The cephalothorax, or 'head' contains the eyes, brain, venom gland, and two stomachs. The abdomen contains the heart, intestines, lungs, spinnerets, silk glands, anus, digestive gland, and reproductive organs.

Now consider the following. If we are to correctly analyze an arachne it would make sense that the upper 'human' portion of the body would contain the eyes, brain, venon gland, sucking stomach, and reproductive organ (that is if we are inferring that Arachne do not lay eggs and instead give birth to live young). The lower 'spider' half would contain the heart, lungs, digestive stomach, intestines, spinnerets, silk glands, and all the rest.

The reason for this is simple: size. Arachne would have larger bodies than humans, thus they would need to have a larger heart and lungs to pump oxygen to their brain and muscles. To power this cardiovasular system, they would need a larger digestive system that would allow them to eat and digest food at a faster rate, also allowing them to synthesize the potiens needed to make their silk.