Do Spiders Have Bones (Are they Vertebrates or Invertebrates?)
Spiders don’t have internal bones – instead, they have a strong exoskeleton made of chitin, which acts as a protective measure for spiders, that replaces bones. Spiders belong to a group of invertebrates called arthropods. One of the typical features of this group of animals that all the members share is the fact that they …
Do Spiders Have Bones (Are they Vertebrates or Invertebrates?) Read More »