Dennis Thoney, general curator of the New York Aquarium for Wildlife Conservation, says: “Even though Mediterranean monk seals have a slow reproductive rate, the harbor seal is doing very well with the same reproductive rate.
Dennis Thoney ütleb: „Kuigi munkhüljestel on madal sündimus, on see nii ka randalhülgel, kuid randalhülgeid pole vähemaks jäänud.