英语中的一些动物的名称,尤其是幼儿时的名称,是一样的,如 calf

dog---puppy(pup)
hen,cock,many birds-chick (chicken)
frog-tadpole
pig-piglet
cat-kitten
snake -snakelet
spider - spiderling
owl - owlet
duck - duckling
Sheep - lamb
dolphin,seal,shark,walrus,hamster -pup
lion,panda,raccoon,leopard,fox,bear - cu