From Longman Dictionary of Contemporary Englishcubcub /kʌb/ ●●○ noun [countable] 1 
HBAthe baby of a wild animal such as a lion or a bear a five-month-old lion cub a tiger and her cubs2 → the Cubs3 SSOa member of the Cub Scout organization → cub reporter
HBAthe baby of a wild animal such as a lion or a bear a five-month-old lion cub a tiger and her cubs2 → the Cubs3 SSOa member of the Cub Scout organization → cub reporterExamples from the Corpus
cub• The most recent estimates suggest that Britain has a population of about 250,000 adult badgers and 105,000 cubs.• We saw her bury her cubs.• I have known a fox earth populated with a family of cubs while small rabbits were running around on the surface nearby.• a seal cub• There inside the den was the first of the cubs.• The older bears will teach the cub how bears are supposed to behave in the wild.• The cubs, all between three and seven weeks old, have been found orphaned or abandoned over the last few weeks.• Lionesses lick their cubs into shape and life.• You know, wash a car with one hand and feed a bottle to a tiger cub with the other.• It is more likely that the white ear spots are there as a signal to cubs following their dam in thick jungle. 