Whales are pregnant for 9 ā€“ 18 months.
After birth the female whale feeds her young by producing milk which her child then suckles on from her nipple.
Suckling may continue anywhere from 6 months to 2 years or more.
In a family the female whale is referred to as the cow, the male is called the bull and the child is known as the calf.
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ā€œBirth of a whaleā€