Rhinoceros
Calf
Kangaroo
joey
Bear
Cub
Snake
Snakelet
Owl
Owlet
Mouse
pup or pinky
Wolf
cub, pup or whelp
Hippopotamus
calf
Mosquito
wriggler
Sheep
Lamb
Chicken
Chick
Dog
Puppy
Cat
Kitten
Bat
Pup
Frog
Tadpole or polliwog
Fox
pup, cub or kit
Monkey
Infant
Duck
Duckling
Horse
foal, colt (male) or filly (female)
Dolphin
Calf
Elephant
Calf
Goat
Kid
Pidgeon or Dove
squab or squeaker
Giraffe
Calf
Lion
Cub
Spider
Spiderling
Rabbit
kitten, kit or bunny