Harvestmen are among the minority of living chelicerates that can take solid food, and the group includes predators, herbivores and scavengers. Horseshoe crabs are also capable of processing solid food, and use a distinctive feeding system. Claws at the tips of their legs grab small invertebrates and pass them to a food groove that runs from between the rearmost legs to the mouth, which is on the underside of the head and faces slightly backwards. The bases of the legs form toothed gnathobases that both grind the food and push it towards the mouth. This is how the earliest arthropods are thought to have fed.
harvestmen are among the minority of living chelicerates that can take solid food and the group includes predators herbivores and scavengers horseshoe crabs are also capable of processing solid food and use a distinctive feeding system claws at the tips of their legs grab small invertebrates and pass them to a food groove that runs from between the rearmost legs to the mouth which is on the underside of the head and faces slightly backwards the bases of the legs form toothed gnathobases that both grind the food and push it towards the mouth this is how the earliest arthropods are thought to have fed