Claim: Spiders are animals.
Evidence: Spiders -LRB- order Araneae -RRB- are air-breathing arthropods that have eight legs and chelicerae with fangs that inject venom.
An arthropod -LRB- from Greek ἄρθρον arthron , `` joint '' and πούς pous , `` foot '' -RRB- is an invertebrate animal having an exoskeleton -LRB- external skeleton -RRB- , a segmented body , and jointed appendages -LRB- paired appendages -RRB-.