title: Heart rates in freely diving Weddell Seals, Leptonychotes weddelli.
mesh_terms: D000818:Animals; D001522:Behavior, Animal; D010872:Caniformia / Q000502:physiology*; D004242:Diving; D005260:Female; D006339:Heart Rate; D008297:Male; D012119:Respiration; D012890:Sleep; D013997:Time Factors