blkfish92 said:
|
No they are not. They are part of the same phylum (Arthropoda), but so is everything else with an exoskeleton and jointed legs. In fact the "family" classification of species comes below both crab and spider (there are different families of spider, but crab isn't one of them)
Being in the same phylum is not particularly special for most species, particularly if that phylum is arthropoda, which has well over 1 million species. For comparison Humans are in the phylum: chordata, which is mostly ascociated with the sub-phylum: vertebrate... which includes all mammals, birds, reptiles, amphibians and most things people class as fish.
(n.b. I wasn't meaning to be condescending by the way, I just knew they were not the same family and have learnt/re-learnt a few things myself in finding out where crab and spider are in the order of species)
