This is a good question and there is no easy answer. These animals all have only or two offspring at a time. The definition of calf gives no clue as to why this is so.
Female elephants are frequenlty called "cow" elephants.
coincidence
A heifer
Elephants Elk Domestic Cattle Caribou Camels Hippopotomouses Whales Rhinocerouses Giraffes Water Buffalo Yaks Bison Muskox Gaur Cape Buffalo Moose
A calf
Female elephants are called cows while male elephants are called bulls and young elephants are called calves. Like cows, elephants live in groups called "herds".
Well, elephants and whales are both water drinking, mammals that live in the wild. My answer would be: Like all mammals, whales & elephants breathe air, are warm blooded, nurse their young with milk from mammary glands (boobs), and have body hair. Both are large in size.
Elephants give birth to only one young at a time, although, in very rare cases, a female can have twins.
Lamb - there is no different between gender. Only when they are adults is there a difference.
Young Beluga whales. Did you think they were foxes or something? If you're looking for what they're called, the general term for infant whales (and dolphins) is the same as for cattle: "calf." Most other marine mammal young are called "pups".
Cattle are mammals, they give birth to live young, and do not lay eggs.
They are all mammals and their babies are called calfs.