Wildlife conservation (1) Weights and measures (1) Seals (Animals) (1) Research (1) Marine mammals (1) Dynamics (1) Diseases (1) Attachment and garnishment (1) Animals (1) Ability (1) Animales--Protección (1) Estudios (1) Focas (1) Mamíferos marinos (1) Fauna (1) Embargo (1) Datos (1) Pesos y medidas (1) Investigación (1) Dinámica (1) Enfermedades (1) Conocimiento (1) Aptitudes (1)