Like all arthropods, the tarantula is an invertebrate that relies on an exoskeleton for muscular support. Spiders are invertebrates but are not considered insects because they only have two main body parts instead of three, eight legs instead of six and no antennae. ...

Are tarantulas insects or reptiles?

No, a tarantula is not a mammal; it is an arachnid, as it belongs to the class of animals called Arachnida. Several distinguishing features make a tarantula an arachnid and not a mammal.

Are spiders an insect?

Anyway, spiders belong to the Class Arachnida, insects to the Class Insecta. Arachnids are as distant from insects, as birds are from fish. ... Spider: 2 body parts, 8 simple eyes, no antennae, no wings, 4 pairs of legs, abdomen unsegmented.