sailfish
saltwater crocodile
sand tiger shark
sandhill crane
scarab
scorpion
sea anemone
sea cucumber
sea otter
seahorse
siberian tiger
sifaka
skunk
sloth bear
snow goose
snow leopard
snowshoe hare
snowy owl
sockeye salmon
spectacled bear
sperm whale
spider monkey
spotted hyena
spotted salamander
spring peeper
squirrel
starfish (sea star)
steller sea lion
steller's sea eagle
stick insect
stingray
sumatran rhinoceros
sun bear
ruby-throated hummingbird
taimen