hare
gazelle
cheetah
A gazelle is faster than a hare.
A cheetah is the fastest.
tortoise
sloth
snail
A sloth is slower than a tortoise.
A snail is the slowest.
crocodile
giant squid
blue whale
A giant squid is bigger than a crocodile.
A blue whale is the biggest.
squirrel
mouse
gecko
A mouse is smaller than a squirrel.
A gecko is the smallest.