Name                       Population     Mass /tonnes
Bowhead whale                     9000            60
Blue whale                       20000           120
Fin whale                       100000            70
Humpback whale                   80000            30
Gray whale                       26000            35
Atlantic white-sided dolphin    250000             0.235
Pacific white-sided dolphin    1000000             0.15
Killer whale                    100000             4.5
Narwhal                          25000             1.5
Beluga                          100000             1.5
Sperm whale                    2000000            50
Baiji                               13             0.13
North Atlantic right whale         300            75
North Pacific right whale          200            80
Southern right whale              7000            70