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🚨 ARTHROPOD OF THE DAY 🚨
The daddy longlegs belongs to the order Opiliones. Unlike in spiders, the number of eyes of daddy longlegs, as well as body type, sex organs, and defensive mechanisms, are all different.
In opilionids, the head, thorax, and abdomen are fused into one thoracic cavity. Spiders, of the order Araneae, have a distinct waist between the cephalothorax and the abdomen. Opilionids have just two eyes, compared to the usual eight in spiders.
Daddy longlegs also do not produce silk, unlike spiders. They do not spin webs, and they do not use webs to capture prey. If you find a harvestman in a web, it does not live there. It probably would like to be rescued from the spider that is about to eat it.
Daddy longlegs are not venomous. They do not have fangs, nor venom glands. Most spiders, with only a few exceptions, produce venom.
They will voluntarily shed legs to get away from predators, but sadly a new appendage does not grow back if it is already full grown. There is some hope if it is in the nymph stage that the leg might grow back.
Its legs are not just vital to locomotion, they are also nerve centers. Through its legs, the daddy longlegs may sense vibrations, smells, and tastes. Pull the legs off a harvestman, and you might be limiting its ability to make sense of the world.