Effect of estrogen on the vocal sac pigmentation, throat colouration and the nature of croaking in the toad (Bufo melanostictus) during breeding season.
D000818:Animals; D001001:Anura; D001947:Breeding; D003864:Depression, Chemical; D004997:Ethinyl Estradiol / Q000494:pharmacology*; D008297:Male; D010614:Pharynx; D010858:Pigmentation / Q000187:drug effects*; D014828:Vocalization, Animal / Q000187:drug effects*
D004997:Ethinyl Estradiol