Examples:
- eel - elver
- ant - antling
- elephant - calf
- lion - cub
- deer - fawn
- swan - cygnet
- rabbit - kit
- zebra - colt
- giraffe - calf
- horse - foal
- cat - kitten
- pig - piglet
- seal - pup
- cow - calf
- goose - gosling
- kangaroo - joey
- penguin - chick
- duck - duckling
- goat - kid
- dog - puppy
- insect - larva
