mammoth marine mammals (6)
I believe the answer is:
whales
(Other definitions for whales that I've seen before include "Aquatic mammals" , "Huge sea mammals" , "Large cetacean mammals" , "Marine mammals" , "Great ocean mammals" .)
I believe the answer is:
whales
(Other definitions for whales that I've seen before include "Aquatic mammals" , "Huge sea mammals" , "Large cetacean mammals" , "Marine mammals" , "Great ocean mammals" .)