title: Cardiac response to diving in wild ducks.
mesh_terms: D000818:Animals; D003864:Depression, Chemical; D004242:Diving; D004372:Ducks / Q000502:physiology*; D004562:Electrocardiography; D006321:Heart / Q000502:physiology*; D006339:Heart Rate; D013045:Species Specificity; D013997:Time Factors