What was unique about the mutations of obtusacanthus

Teeth outside its mouth

A mutations are spontaneous, random and permanent changes that occur in the DNA sequence of a gene. Mutations in a gene's DNA sequence can alter the amino acid sequence of the protein encoded by the gene.

Teeth outside the mouth is the most unique feature in the mutations of obtusacanthus

c

explanation:

yes, because even though a theory has a  lot of evidence to support it, it is not always true