title: Evolution, relaxin and insulin: a new perspective.
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D005075:Biological Evolution; D006196:Hagfishes; D007328:Insulin / Q000235:genetics*; D051381:Rats; D012065:Relaxin / Q000235:genetics*; D012754:Sharks; D013045:Species Specificity; D013552:Swine
chemical_list: D007328:Insulin; D012065:Relaxin