title: Testicular regulation in nonmammalian vertebrates.
mesh_terms: D000663:Amphibians / Q000502:physiology*; D000728:Androgens / Q000502:physiology; D000818:Animals; D005399:Fishes / Q000502:physiology*; D007031:Hypothalamus / Q000502:physiology; D008297:Male; D010902:Pituitary Gland / Q000502:physiology; D012098:Reproduction; D012104:Reptiles / Q000502:physiology*; D013091:Spermatogenesis; D013737:Testis / Q000502:physiology*; D013739:Testosterone / Q000378:metabolism
chemical_list: D000728:Androgens; D013739:Testosterone