When there's more than one animal, we call it plural. Here are some plural form of animal names:
ant- ants bat- bats bear- bears bee- bees
bird- birds buffalo- buffalo, buffaloes, buffaloes butterfly- butterflies
camel- camels cat- cats chicken- chickens deer- deer
dog- dogs dolphin- dolphins donkey- donkeys duck- ducks
elephant- elephants fish- fish, fishes fly- flies fox- foxes
frog- frogs goose- geese goat- goats horse- horses
kangaroo- kangaroos lion-lions monkey- monkeys
moose- moose mouse- mice owl- owls
ox- oxen penguin- penguins pig- pigs puppy- puppies
rabbit- rabbits sheep- sheep tiger- tigers turtle- turtles
whale- whales wolf- wolves zebra- zebra, zebras
