Mammals, reptiles, birds, amphibians and fish all have something in common - they all have a backbone.
Here are the basics on each group.
Source: http://www.sheppardsoftware.com/content/animals/kidscorner/classification/kc_class_again.htm
Practice what you have just learned with the next games!
Animal Characteristics game
Living things machine
Find the animal thief
Sort the living things
Click here for more information, videos and games.
Enjoy!