Guji Guji is a story about ducks and crocodiles. How are they similar? How are they different?
Ducks and crocodiles both:
lay eggs, eat fish, eat bugs, swim in water (lakes, streams and rivers), ... [Can YOU think of some more similarities?]
Only ducks:
have feathers, can fly in the sky (YOU think of some more)
Only crocodiles:
can eat big animals, have scales (YOU think of some more)
Use these ideas to make a mind map. yEd is free software that makes beautiful diagrams.