Southern right whale (Eubalaena australis) mother and calf being harassed by kelp gull, Peninsula Valdez, Argentina

calf kelp gull disturbance coastal waters marine life wildlife interaction argentina peninsula valdez ocean swimming harassment nature sea animal behavior conservation cetaceans habitat bird ecology environment natural setting mammal aquatic species mother young avian tranquility social biodiversity ecosystem underwater maternal care nurturing observation welfare ethology preservation protection playful homeostasis food