This broader animal meaning applies to the young of various mammals, especially canids and seals.
Seal pups rested on the ice.
The wolf pups remained near the den.
This informal figurative meaning refers to young, inexperienced, or junior people.
The veteran workers called the new recruits pups.
Those young pups still have much to learn.
This is the third-person singular form of pup and refers to an animal giving birth to pups.
The seal pups on the same beach each year.
This breed usually pups in early spring.