How are the iupac molecular naming system and the zoological taxonomic naming system similar and how are they different?

The similarity between the IUPAC naming and the zoological taxonomic nomenclature is that both are used for naming and providing identity.

The difference between the IUPAC naming and the zoological taxonomic nomenclature system is that the IUPAC naming is the process of naming the chemical compounds. These names are published in the Nomenclature of Organic Chemistry (Blue book). On the other hand, the zoological taxonomic naming system is used for naming the animals. The International Code of Zoological Naming has published many research works related to zoological naming.        

because u need two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei to form isotopes.

so since they all have the same shape? i mean maybe because m& m and reeses are both chocolates