| Arachnology is the science of arachnids (Arachnida), while Acarology is concerned only with animals with a spider-like appearance. Arachnids belong to the category of Arthropods (Arthropoda) and can be classified as spiders, whip spiders, Solifugae, hooded tickspiders, harvestmen, Acarina and ticks. The largest order... |