Compare:
The crocodile is more dangerous than the duck.
What's this?
Lion
What's this?
Mole
Compare:
The man is taller than the woman.
What's this?
Elephant
What's this?
Pigeon
What's this?
Chicken
What's this?
Snake
What's this?
Monkey
Compare:
The lower pencil is longer than the upper pencil.
What's this?
Spider
What's this?
Giraffe
What's this?
Shark
What's this?
Swan
What's this?
Hippo
What's this?
Duck
What's this?
Cow
What's this?
Dolphin
Compare:
The man is younger than the woman.
What's this?
Horse
What's this?
Tiger
What's this?
Goat
What's this?
Ant
What's this?
Frog
What's this?
Worm
What's this?
Parrot
What's this?
Kangaroo